Some options for addressing this:
1) Be more specific in your probabilities. What experiences are included or excluded from these predictions? Often, this exercise will show you that you have unreasonable estimates for one of these figures, which may or may not bring your beliefs into consistency.
2) Recognize that these probability estimates are pretty wild guesses, and accept that they’re probably wrong. Inconsistent beliefs necessarily include falsehoods, but that doesn’t mean you have enough information to improve them.
3) See if you can gather any evidence for some of the intermediate probabilities you’re working with. These may give hints toward which of them to adjust.