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Finding the Fourth Proportional to 616,874.20, 925,311.30 and 476,733.40

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Solution

The fourth proportional to 616,874.20, 925,311.30 and 476,733.40 is: 715,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,874.20 : 925,311.30 = 476,733.40 : x
  2. Step 2: Convert to fraction form
    616,874.20/925,311.30 = 476,733.40/x
  3. Step 3: Cross multiply
    616,874.20x = 925,311.30 × 476,733.40
  4. Step 4: Simplify right side
    616,874.20x = 441,126,802,107.42
  5. Step 5: Solve for x
    x = 441,126,802,107.42/616,874.20
  6. Step 6: Final answer
    x = 715,100.10

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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.