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Finding the Fourth Proportional to 339,391.35, 468,344.92 and 203,500.28

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Solution

The fourth proportional to 339,391.35, 468,344.92 and 203,500.28 is: 280,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,391.35 : 468,344.92 = 203,500.28 : x
  2. Step 2: Convert to fraction form
    339,391.35/468,344.92 = 203,500.28/x
  3. Step 3: Cross multiply
    339,391.35x = 468,344.92 × 203,500.28
  4. Step 4: Simplify right side
    339,391.35x = 95,308,321,339.08
  5. Step 5: Solve for x
    x = 95,308,321,339.08/339,391.35
  6. Step 6: Final answer
    x = 280,821.31

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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.