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Finding the Fourth Proportional to 568,974.92, 853,264.74 and 316,640.48

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Solution

The fourth proportional to 568,974.92, 853,264.74 and 316,640.48 is: 474,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,974.92 : 853,264.74 = 316,640.48 : x
  2. Step 2: Convert to fraction form
    568,974.92/853,264.74 = 316,640.48/x
  3. Step 3: Cross multiply
    568,974.92x = 853,264.74 × 316,640.48
  4. Step 4: Simplify right side
    568,974.92x = 270,178,156,840.68
  5. Step 5: Solve for x
    x = 270,178,156,840.68/568,974.92
  6. Step 6: Final answer
    x = 474,850.73

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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.