## I'm sorry, but the text you provided seems to be random characters and does not make sense. However, I can help you calculate the answer to your question.

To convert pounds to kilograms, we can use the conversion factor: 1 pound = 0.453592 kilograms. So, to find the weight of the child in kilograms, we can multiply 55 pounds by 0.453592:

Weight in kilograms = 55 pounds * 0.453592 kg/pound = 24.94736 kg (rounded to five decimal places).

Now, we can calculate the dose of the drug for the child:

Dose = Weight * Rate = 24.94736 kg * 500 mcg/kg = 12,473.68 mcg (rounded to two decimal places).

To convert mcg to grams, we can use the conversion factor: 1 gram = 1,000,000 mcg. So, the dose in grams would be:

Dose in grams = 12,473.68 mcg * 1 gram / 1,000,000 mcg = 0.01247368 grams (rounded to eight decimal places).

Therefore, the child weighing 55 pounds should be given approximately 0.01247368 grams of the drug.