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Finding the Fourth Proportional to 627,993,172.88, 866,614,738.56 and 345,732,796.56

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Solution

The fourth proportional to 627,993,172.88, 866,614,738.56 and 345,732,796.56 is: 477,102,538.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,993,172.88 : 866,614,738.56 = 345,732,796.56 : x
  2. Step 2: Convert to fraction form
    627,993,172.88/866,614,738.56 = 345,732,796.56/x
  3. Step 3: Cross multiply
    627,993,172.88x = 866,614,738.56 × 345,732,796.56
  4. Step 4: Simplify right side
    627,993,172.88x = 299,617,137,102,462,080
  5. Step 5: Solve for x
    x = 299,617,137,102,462,080/627,993,172.88
  6. Step 6: Final answer
    x = 477,102,538.76

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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.