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Finding the Fourth Proportional to 656,772.50, 985,306.38 and 207,520.33

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Solution

The fourth proportional to 656,772.50, 985,306.38 and 207,520.33 is: 311,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,772.50 : 985,306.38 = 207,520.33 : x
  2. Step 2: Convert to fraction form
    656,772.50/985,306.38 = 207,520.33/x
  3. Step 3: Cross multiply
    656,772.50x = 985,306.38 × 207,520.33
  4. Step 4: Simplify right side
    656,772.50x = 204,471,103,734.69
  5. Step 5: Solve for x
    x = 204,471,103,734.69/656,772.50
  6. Step 6: Final answer
    x = 311,327.14

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1.5x scale

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.