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Finding the Fourth Proportional to 394,516.53, 544,421.92 and 222,433.02

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Solution

The fourth proportional to 394,516.53, 544,421.92 and 222,433.02 is: 306,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,516.53 : 544,421.92 = 222,433.02 : x
  2. Step 2: Convert to fraction form
    394,516.53/544,421.92 = 222,433.02/x
  3. Step 3: Cross multiply
    394,516.53x = 544,421.92 × 222,433.02
  4. Step 4: Simplify right side
    394,516.53x = 121,097,411,819.80
  5. Step 5: Solve for x
    x = 121,097,411,819.80/394,516.53
  6. Step 6: Final answer
    x = 306,951.43

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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.