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Finding the Fourth Proportional to 322,771.68, 445,447.20 and 179,545.20

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Solution

The fourth proportional to 322,771.68, 445,447.20 and 179,545.20 is: 247,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,771.68 : 445,447.20 = 179,545.20 : x
  2. Step 2: Convert to fraction form
    322,771.68/445,447.20 = 179,545.20/x
  3. Step 3: Cross multiply
    322,771.68x = 445,447.20 × 179,545.20
  4. Step 4: Simplify right side
    322,771.68x = 79,977,906,613.44
  5. Step 5: Solve for x
    x = 79,977,906,613.44/322,771.68
  6. Step 6: Final answer
    x = 247,784.77

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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.