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Finding the Fourth Proportional to 437,031.55, 655,640.88 and 247,581.46

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Solution

The fourth proportional to 437,031.55, 655,640.88 and 247,581.46 is: 371,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,031.55 : 655,640.88 = 247,581.46 : x
  2. Step 2: Convert to fraction form
    437,031.55/655,640.88 = 247,581.46/x
  3. Step 3: Cross multiply
    437,031.55x = 655,640.88 × 247,581.46
  4. Step 4: Simplify right side
    437,031.55x = 162,324,526,306.09
  5. Step 5: Solve for x
    x = 162,324,526,306.09/437,031.55
  6. Step 6: Final answer
    x = 371,425.19

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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.