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Finding the Fourth Proportional to 656,892.80, 984,172.80 and 614,902.40

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Solution

The fourth proportional to 656,892.80, 984,172.80 and 614,902.40 is: 921,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,892.80 : 984,172.80 = 614,902.40 : x
  2. Step 2: Convert to fraction form
    656,892.80/984,172.80 = 614,902.40/x
  3. Step 3: Cross multiply
    656,892.80x = 984,172.80 × 614,902.40
  4. Step 4: Simplify right side
    656,892.80x = 605,170,216,734.72
  5. Step 5: Solve for x
    x = 605,170,216,734.72/656,892.80
  6. Step 6: Final answer
    x = 921,261.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.