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Finding the Fourth Proportional to 659,794.43, 910,614.22 and 418,099.61

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Solution

The fourth proportional to 659,794.43, 910,614.22 and 418,099.61 is: 577,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,794.43 : 910,614.22 = 418,099.61 : x
  2. Step 2: Convert to fraction form
    659,794.43/910,614.22 = 418,099.61/x
  3. Step 3: Cross multiply
    659,794.43x = 910,614.22 × 418,099.61
  4. Step 4: Simplify right side
    659,794.43x = 380,727,451,473.74
  5. Step 5: Solve for x
    x = 380,727,451,473.74/659,794.43
  6. Step 6: Final answer
    x = 577,039.50

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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.