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: [20.538, 91.679, -41.267, -36.695, 172.144, -68.522, 157.476, 203.499, 132.79]
A: 
[ 0.033  0.145 -0.065 -0.058  0.273 -0.108  0.249  0.322  0.21 ]