Home / 629,944.40-944,916.60-405,558.20

Finding the Fourth Proportional to 629,944.40, 944,916.60 and 405,558.20

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Solution

The fourth proportional to 629,944.40, 944,916.60 and 405,558.20 is: 608,337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,944.40 : 944,916.60 = 405,558.20 : x
  2. Step 2: Convert to fraction form
    629,944.40/944,916.60 = 405,558.20/x
  3. Step 3: Cross multiply
    629,944.40x = 944,916.60 × 405,558.20
  4. Step 4: Simplify right side
    629,944.40x = 383,218,675,446.12
  5. Step 5: Solve for x
    x = 383,218,675,446.12/629,944.40
  6. Step 6: Final answer
    x = 608,337.30

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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.