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Finding the Fourth Proportional to 323,331.42, 446,042.82 and 251,217.90

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Solution

The fourth proportional to 323,331.42, 446,042.82 and 251,217.90 is: 346,560.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,331.42 : 446,042.82 = 251,217.90 : x
  2. Step 2: Convert to fraction form
    323,331.42/446,042.82 = 251,217.90/x
  3. Step 3: Cross multiply
    323,331.42x = 446,042.82 × 251,217.90
  4. Step 4: Simplify right side
    323,331.42x = 112,053,940,550.48
  5. Step 5: Solve for x
    x = 112,053,940,550.48/323,331.42
  6. Step 6: Final answer
    x = 346,560.63

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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.