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Finding the Fourth Proportional to 408,748.20, 564,121.62 and 247,598.52

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Solution

The fourth proportional to 408,748.20, 564,121.62 and 247,598.52 is: 341,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,748.20 : 564,121.62 = 247,598.52 : x
  2. Step 2: Convert to fraction form
    408,748.20/564,121.62 = 247,598.52/x
  3. Step 3: Cross multiply
    408,748.20x = 564,121.62 × 247,598.52
  4. Step 4: Simplify right side
    408,748.20x = 139,675,678,212.00
  5. Step 5: Solve for x
    x = 139,675,678,212.00/408,748.20
  6. Step 6: Final answer
    x = 341,715.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.