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Finding the Fourth Proportional to 322,572.33, 445,178.17 and 177,403.69

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Solution

The fourth proportional to 322,572.33, 445,178.17 and 177,403.69 is: 244,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,572.33 : 445,178.17 = 177,403.69 : x
  2. Step 2: Convert to fraction form
    322,572.33/445,178.17 = 177,403.69/x
  3. Step 3: Cross multiply
    322,572.33x = 445,178.17 × 177,403.69
  4. Step 4: Simplify right side
    322,572.33x = 78,976,247,839.56
  5. Step 5: Solve for x
    x = 78,976,247,839.56/322,572.33
  6. Step 6: Final answer
    x = 244,832.68

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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.