The wrenches in the photos are arranged left to right in the following order. 1/4, 9/16, 5/16, 5/8, 3/8, 11/16, 7/16, 3/4, 1/2, 7/8. While installing a dishwasher, you try using the 3/8 wrench, but find out it is too small. You try the next largest wrench, but it is also too small. What is the next largest size you should try using? Explain your reasoning.