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Finding the Fourth Proportional to 394,328.70, 591,930.45 and 244,737.90

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Solution

The fourth proportional to 394,328.70, 591,930.45 and 244,737.90 is: 367,378.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,328.70 : 591,930.45 = 244,737.90 : x
  2. Step 2: Convert to fraction form
    394,328.70/591,930.45 = 244,737.90/x
  3. Step 3: Cross multiply
    394,328.70x = 591,930.45 × 244,737.90
  4. Step 4: Simplify right side
    394,328.70x = 144,867,815,279.06
  5. Step 5: Solve for x
    x = 144,867,815,279.06/394,328.70
  6. Step 6: Final answer
    x = 367,378.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.