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Finding the Fourth Proportional to 543,270.76, 814,363.62 and 272,571.88

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Solution

The fourth proportional to 543,270.76, 814,363.62 and 272,571.88 is: 408,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,270.76 : 814,363.62 = 272,571.88 : x
  2. Step 2: Convert to fraction form
    543,270.76/814,363.62 = 272,571.88/x
  3. Step 3: Cross multiply
    543,270.76x = 814,363.62 × 272,571.88
  4. Step 4: Simplify right side
    543,270.76x = 221,972,622,907.01
  5. Step 5: Solve for x
    x = 221,972,622,907.01/543,270.76
  6. Step 6: Final answer
    x = 408,585.62

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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.