How can I fill multiple form fields simultaneously with text from one?

I am a Course Developer and typically have to completed not less than 3 forms which call for portions of information found in one main form, but organized differently for different purposes. If I were able to simply type the information into the ‘main’ form and have specific areas populated to other forms, I could significantly reduce the redundancy of completing forms.

It’s not significant to me whether the main form is in a database or the other forms are auto completed in form developed from a database.