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Finding the Fourth Proportional to 656,521.80, 984,815.10 and 341,593.80

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Solution

The fourth proportional to 656,521.80, 984,815.10 and 341,593.80 is: 512,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,521.80 : 984,815.10 = 341,593.80 : x
  2. Step 2: Convert to fraction form
    656,521.80/984,815.10 = 341,593.80/x
  3. Step 3: Cross multiply
    656,521.80x = 984,815.10 × 341,593.80
  4. Step 4: Simplify right side
    656,521.80x = 336,406,732,306.38
  5. Step 5: Solve for x
    x = 336,406,732,306.38/656,521.80
  6. Step 6: Final answer
    x = 512,407.56

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Double scale
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Similar ratio
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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.