Tom weighs 150 kg.
He holds 1.5 times his weight in each hand, so he holds 1.5 * 150 = 225 kg in each hand.
He is also wearing a weight vest weighing half his weight, so the weight of the vest is 150 / 2 = 75 kg.
Therefore, the total weight he is moving with is 225 + 225 + 75 = 525 kg.
#### 525
The answer is: 525
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
Tom weighs 150 kg.  He manages to hold 1.5 times his weight in each hand while wearing a weight vest weighing half his weight.  How much total weight was he moving with?

### Answer:
