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Finding the Fourth Proportional to 322,560.51, 445,143.18 and 177,358.78

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Solution

The fourth proportional to 322,560.51, 445,143.18 and 177,358.78 is: 244,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,560.51 : 445,143.18 = 177,358.78 : x
  2. Step 2: Convert to fraction form
    322,560.51/445,143.18 = 177,358.78/x
  3. Step 3: Cross multiply
    322,560.51x = 445,143.18 × 177,358.78
  4. Step 4: Simplify right side
    322,560.51x = 78,950,051,330.12
  5. Step 5: Solve for x
    x = 78,950,051,330.12/322,560.51
  6. Step 6: Final answer
    x = 244,760.44

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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.