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Finding the Fourth Proportional to 543,396.31, 814,832.30 and 227,768.47

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Solution

The fourth proportional to 543,396.31, 814,832.30 and 227,768.47 is: 341,542.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,396.31 : 814,832.30 = 227,768.47 : x
  2. Step 2: Convert to fraction form
    543,396.31/814,832.30 = 227,768.47/x
  3. Step 3: Cross multiply
    543,396.31x = 814,832.30 × 227,768.47
  4. Step 4: Simplify right side
    543,396.31x = 185,593,105,138.74
  5. Step 5: Solve for x
    x = 185,593,105,138.74/543,396.31
  6. Step 6: Final answer
    x = 341,542.81

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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.