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No.
First, to round to the nearest ten thousand, you still need to keep the numbers to the left of the ten thousand place. So --
1,6xx,xxx
The 4 is in the 10 thousand place.
Look at the number to the immediate right of the 4. If 3 is smaller than 5, then the 4 stays the same. If 3 is larger than 5, then we round up.
Please try again.