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Finding the Fourth Proportional to 543,223.90, 814,933.05 and 227,712.70

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Solution

The fourth proportional to 543,223.90, 814,933.05 and 227,712.70 is: 341,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,223.90 : 814,933.05 = 227,712.70 : x
  2. Step 2: Convert to fraction form
    543,223.90/814,933.05 = 227,712.70/x
  3. Step 3: Cross multiply
    543,223.90x = 814,933.05 × 227,712.70
  4. Step 4: Simplify right side
    543,223.90x = 185,570,605,134.74
  5. Step 5: Solve for x
    x = 185,570,605,134.74/543,223.90
  6. Step 6: Final answer
    x = 341,609.80

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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.