Explanation:
To find the distance between Los Angeles and San Francisco, you can subtract the 50,000 feet from the distance between San Diego and San Francisco.
Distance between Los Angeles and San Francisco = Distance between San Diego and San Francisco - 50,000 feet
Distance between Los Angeles and San Francisco = 683,824 feet - 50,000 feet
Distance between Los Angeles and San Francisco = 633,824 feet
So, the distance between Los Angeles and San Francisco is 633,824 feet.