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Finding the Fourth Proportional to 379,508.48, 569,356.17 and 267,407.65

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Solution

The fourth proportional to 379,508.48, 569,356.17 and 267,407.65 is: 401,177.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,508.48 : 569,356.17 = 267,407.65 : x
  2. Step 2: Convert to fraction form
    379,508.48/569,356.17 = 267,407.65/x
  3. Step 3: Cross multiply
    379,508.48x = 569,356.17 × 267,407.65
  4. Step 4: Simplify right side
    379,508.48x = 152,250,193,006.53
  5. Step 5: Solve for x
    x = 152,250,193,006.53/379,508.48
  6. Step 6: Final answer
    x = 401,177.32

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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.