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Finding the Fourth Proportional to 322,575.38, 445,128.78 and 179,326.70

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Solution

The fourth proportional to 322,575.38, 445,128.78 and 179,326.70 is: 247,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,575.38 : 445,128.78 = 179,326.70 : x
  2. Step 2: Convert to fraction form
    322,575.38/445,128.78 = 179,326.70/x
  3. Step 3: Cross multiply
    322,575.38x = 445,128.78 × 179,326.70
  4. Step 4: Simplify right side
    322,575.38x = 79,823,475,192.43
  5. Step 5: Solve for x
    x = 79,823,475,192.43/322,575.38
  6. Step 6: Final answer
    x = 247,456.81

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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.