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Finding the Fourth Proportional to 397,428.34, 548,169.09 and 244,265.44

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Solution

The fourth proportional to 397,428.34, 548,169.09 and 244,265.44 is: 336,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,428.34 : 548,169.09 = 244,265.44 : x
  2. Step 2: Convert to fraction form
    397,428.34/548,169.09 = 244,265.44/x
  3. Step 3: Cross multiply
    397,428.34x = 548,169.09 × 244,265.44
  4. Step 4: Simplify right side
    397,428.34x = 133,898,763,963.25
  5. Step 5: Solve for x
    x = 133,898,763,963.25/397,428.34
  6. Step 6: Final answer
    x = 336,912.97

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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.