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Finding the Fourth Proportional to 408,416.92, 563,534.62 and 247,286.86

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Solution

The fourth proportional to 408,416.92, 563,534.62 and 247,286.86 is: 341,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,416.92 : 563,534.62 = 247,286.86 : x
  2. Step 2: Convert to fraction form
    408,416.92/563,534.62 = 247,286.86/x
  3. Step 3: Cross multiply
    408,416.92x = 563,534.62 × 247,286.86
  4. Step 4: Simplify right side
    408,416.92x = 139,354,704,654.04
  5. Step 5: Solve for x
    x = 139,354,704,654.04/408,416.92
  6. Step 6: Final answer
    x = 341,206.98

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1.5x scale

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.