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Finding the Fourth Proportional to 408,758.76, 613,230.39 and 124,474.74

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Solution

The fourth proportional to 408,758.76, 613,230.39 and 124,474.74 is: 186,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,758.76 : 613,230.39 = 124,474.74 : x
  2. Step 2: Convert to fraction form
    408,758.76/613,230.39 = 124,474.74/x
  3. Step 3: Cross multiply
    408,758.76x = 613,230.39 × 124,474.74
  4. Step 4: Simplify right side
    408,758.76x = 76,331,693,355.35
  5. Step 5: Solve for x
    x = 76,331,693,355.35/408,758.76
  6. Step 6: Final answer
    x = 186,740.20

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1.5x scale

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.