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Finding the Fourth Proportional to 394,906.44, 544,404.06 and 281,532.36

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Solution

The fourth proportional to 394,906.44, 544,404.06 and 281,532.36 is: 388,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,906.44 : 544,404.06 = 281,532.36 : x
  2. Step 2: Convert to fraction form
    394,906.44/544,404.06 = 281,532.36/x
  3. Step 3: Cross multiply
    394,906.44x = 544,404.06 × 281,532.36
  4. Step 4: Simplify right side
    394,906.44x = 153,267,359,805.38
  5. Step 5: Solve for x
    x = 153,267,359,805.38/394,906.44
  6. Step 6: Final answer
    x = 388,110.56

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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.