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Finding the Fourth Proportional to 437,062.07, 655,686.90 and 247,613.20

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Solution

The fourth proportional to 437,062.07, 655,686.90 and 247,613.20 is: 371,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,062.07 : 655,686.90 = 247,613.20 : x
  2. Step 2: Convert to fraction form
    437,062.07/655,686.90 = 247,613.20/x
  3. Step 3: Cross multiply
    437,062.07x = 655,686.90 × 247,613.20
  4. Step 4: Simplify right side
    437,062.07x = 162,356,729,867.86
  5. Step 5: Solve for x
    x = 162,356,729,867.86/437,062.07
  6. Step 6: Final answer
    x = 371,472.93

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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.