Home / 629,740.10-944,610.15-405,791.30

Finding the Fourth Proportional to 629,740.10, 944,610.15 and 405,791.30

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Solution

The fourth proportional to 629,740.10, 944,610.15 and 405,791.30 is: 608,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,740.10 : 944,610.15 = 405,791.30 : x
  2. Step 2: Convert to fraction form
    629,740.10/944,610.15 = 405,791.30/x
  3. Step 3: Cross multiply
    629,740.10x = 944,610.15 × 405,791.30
  4. Step 4: Simplify right side
    629,740.10x = 383,314,580,761.70
  5. Step 5: Solve for x
    x = 383,314,580,761.70/629,740.10
  6. Step 6: Final answer
    x = 608,686.95

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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.