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Finding the Fourth Proportional to 616,918.20, 925,377.30 and 476,950.20

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Solution

The fourth proportional to 616,918.20, 925,377.30 and 476,950.20 is: 715,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,918.20 : 925,377.30 = 476,950.20 : x
  2. Step 2: Convert to fraction form
    616,918.20/925,377.30 = 476,950.20/x
  3. Step 3: Cross multiply
    616,918.20x = 925,377.30 × 476,950.20
  4. Step 4: Simplify right side
    616,918.20x = 441,358,888,310.46
  5. Step 5: Solve for x
    x = 441,358,888,310.46/616,918.20
  6. Step 6: Final answer
    x = 715,425.30

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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.