To find a relative date 40 weeks in the future from November 25th, you can manually calculate it by understanding the basics of date arithmetic. First, consider that one week consists of seven days. Therefore, to calculate 40 weeks ahead, you need to multiply 7 by 40, which equals 280 days. Adding 280 days to November 25th takes you to August 31st of the following year. This process involves simple arithmetic and helps you determine future dates accurately.