Select the missing number from the following options to complete the given series:
$$0.8,1.6,2.4,3.2,\_\_\_\_,4.8,5.6,6.4$$

Let's observe the constant difference between consecutive terms in the series:
$$1.6-0.8=0.8$$

$$2.4-1.6=0.8$$

$$3.2-2.4=0.8$$

The pattern is adding $0.8$ at each step. So, the missing term is:

$$3.2+0.8=4.0=4$$

Verify the next term: $4+0.8=4.8$. The pattern holds correct.