Finding the Fourth Proportional to 779,166,289, 1,075,283,278.50 and 431,485,777
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Solution
The fourth proportional to 779,166,289, 1,075,283,278.50 and 431,485,777 is: 595,469,089.81
Step by Step Solution
- Step 1: Write the proportion equation
779,166,289 : 1,075,283,278.50 = 431,485,777 : x - Step 2: Convert to fraction form
779,166,289/1,075,283,278.50 = 431,485,777/x - Step 3: Cross multiply
779,166,289x = 1,075,283,278.50 × 431,485,777 - Step 4: Simplify right side
779,166,289x = 463,969,440,918,679,872 - Step 5: Solve for x
x = 463,969,440,918,679,872/779,166,289 - Step 6: Final answer
x = 595,469,089.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.