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Finding the Fourth Proportional to 616,877.70, 925,316.55 and 476,736.90

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Solution

The fourth proportional to 616,877.70, 925,316.55 and 476,736.90 is: 715,105.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,877.70 : 925,316.55 = 476,736.90 : x
  2. Step 2: Convert to fraction form
    616,877.70/925,316.55 = 476,736.90/x
  3. Step 3: Cross multiply
    616,877.70x = 925,316.55 × 476,736.90
  4. Step 4: Simplify right side
    616,877.70x = 441,132,543,565.70
  5. Step 5: Solve for x
    x = 441,132,543,565.70/616,877.70
  6. Step 6: Final answer
    x = 715,105.35

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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.