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Finding the Fourth Proportional to 339,391.60, 468,345.27 and 203,500.53

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Solution

The fourth proportional to 339,391.60, 468,345.27 and 203,500.53 is: 280,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,391.60 : 468,345.27 = 203,500.53 : x
  2. Step 2: Convert to fraction form
    339,391.60/468,345.27 = 203,500.53/x
  3. Step 3: Cross multiply
    339,391.60x = 468,345.27 × 203,500.53
  4. Step 4: Simplify right side
    339,391.60x = 95,308,510,667.99
  5. Step 5: Solve for x
    x = 95,308,510,667.99/339,391.60
  6. Step 6: Final answer
    x = 280,821.65

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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.