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Finding the Fourth Proportional to 656,318.88, 984,499.38 and 207,043.92

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Solution

The fourth proportional to 656,318.88, 984,499.38 and 207,043.92 is: 310,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,318.88 : 984,499.38 = 207,043.92 : x
  2. Step 2: Convert to fraction form
    656,318.88/984,499.38 = 207,043.92/x
  3. Step 3: Cross multiply
    656,318.88x = 984,499.38 × 207,043.92
  4. Step 4: Simplify right side
    656,318.88x = 203,834,610,872.77
  5. Step 5: Solve for x
    x = 203,834,610,872.77/656,318.88
  6. Step 6: Final answer
    x = 310,572.52

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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.