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Finding the Fourth Proportional to 394,757.82, 544,764.69 and 213,468.48

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Solution

The fourth proportional to 394,757.82, 544,764.69 and 213,468.48 is: 294,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,757.82 : 544,764.69 = 213,468.48 : x
  2. Step 2: Convert to fraction form
    394,757.82/544,764.69 = 213,468.48/x
  3. Step 3: Cross multiply
    394,757.82x = 544,764.69 × 213,468.48
  4. Step 4: Simplify right side
    394,757.82x = 116,290,090,331.97
  5. Step 5: Solve for x
    x = 116,290,090,331.97/394,757.82
  6. Step 6: Final answer
    x = 294,585.91

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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.