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Finding the Fourth Proportional to 428,793.14, 591,758.26 and 237,802.43

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Solution

The fourth proportional to 428,793.14, 591,758.26 and 237,802.43 is: 328,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,793.14 : 591,758.26 = 237,802.43 : x
  2. Step 2: Convert to fraction form
    428,793.14/591,758.26 = 237,802.43/x
  3. Step 3: Cross multiply
    428,793.14x = 591,758.26 × 237,802.43
  4. Step 4: Simplify right side
    428,793.14x = 140,721,553,085.46
  5. Step 5: Solve for x
    x = 140,721,553,085.46/428,793.14
  6. Step 6: Final answer
    x = 328,180.51

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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.