What is 784,392 rounded to the nearest ten thousand?

784,392 rounded to the nearest ten thousand is 780,000.

To round 784,392 to the nearest ten thousand, we need to look at the digit in the ten thousand place, which is the fourth digit from the right. In this case, the digit in the ten thousand place is 9. Since the digit 9 is greater than or equal to 5, we round up the number.

So, rounding 784,392 to the nearest ten thousand gives us the answer of 790,000.