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Finding the Fourth Proportional to 315,437.20, 472,003.80 and 232,493.20

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Solution

The fourth proportional to 315,437.20, 472,003.80 and 232,493.20 is: 347,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,437.20 : 472,003.80 = 232,493.20 : x
  2. Step 2: Convert to fraction form
    315,437.20/472,003.80 = 232,493.20/x
  3. Step 3: Cross multiply
    315,437.20x = 472,003.80 × 232,493.20
  4. Step 4: Simplify right side
    315,437.20x = 109,737,673,874.16
  5. Step 5: Solve for x
    x = 109,737,673,874.16/315,437.20
  6. Step 6: Final answer
    x = 347,890.72

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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.