Home / 629,931.40-944,897.10-405,545.20

Finding the Fourth Proportional to 629,931.40, 944,897.10 and 405,545.20

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Solution

The fourth proportional to 629,931.40, 944,897.10 and 405,545.20 is: 608,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,931.40 : 944,897.10 = 405,545.20 : x
  2. Step 2: Convert to fraction form
    629,931.40/944,897.10 = 405,545.20/x
  3. Step 3: Cross multiply
    629,931.40x = 944,897.10 × 405,545.20
  4. Step 4: Simplify right side
    629,931.40x = 383,198,483,398.92
  5. Step 5: Solve for x
    x = 383,198,483,398.92/629,931.40
  6. Step 6: Final answer
    x = 608,317.80

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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.