A large public library had 120,000 books in its collection at the beginning of the year. By the end of the year, the collection had grown to 150,000 books. If a book is selected at random from the library's collection at the end of the year, the probability that the book is a fiction novel is 0.65. There were thousand fiction novels in the library's collection at the end of the year. To the nearest integer, what is the value of ?