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: [145.445, 186.403, 168.915, 93.753, 83.612]
A: 
[0.214 0.275 0.249 0.138 0.123]