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Finding the Fourth Proportional to 322,761.24, 445,404.12 and 179,518.20

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Solution

The fourth proportional to 322,761.24, 445,404.12 and 179,518.20 is: 247,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,761.24 : 445,404.12 = 179,518.20 : x
  2. Step 2: Convert to fraction form
    322,761.24/445,404.12 = 179,518.20/x
  3. Step 3: Cross multiply
    322,761.24x = 445,404.12 × 179,518.20
  4. Step 4: Simplify right side
    322,761.24x = 79,958,145,894.98
  5. Step 5: Solve for x
    x = 79,958,145,894.98/322,761.24
  6. Step 6: Final answer
    x = 247,731.56

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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.