In this task, you will be given a list of numbers. The goal is to divide all the numbers in the list by a constant such that the sum of the resulting list is 1. The output should be rounded to 3 decimals.
Q: [215.273, 58.186, 140.588, 33.689, 12.512, -49.394, 81.075, 42.784, 42.097]
A: 
[ 0.373  0.101  0.244  0.058  0.022 -0.086  0.141  0.074  0.073]