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Finding the Fourth Proportional to 322,609.87, 445,213.05 and 177,426.88

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Solution

The fourth proportional to 322,609.87, 445,213.05 and 177,426.88 is: 244,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,609.87 : 445,213.05 = 177,426.88 : x
  2. Step 2: Convert to fraction form
    322,609.87/445,213.05 = 177,426.88/x
  3. Step 3: Cross multiply
    322,609.87x = 445,213.05 × 177,426.88
  4. Step 4: Simplify right side
    322,609.87x = 78,992,761,239.85
  5. Step 5: Solve for x
    x = 78,992,761,239.85/322,609.87
  6. Step 6: Final answer
    x = 244,855.38

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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.