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Finding the Fourth Proportional to 543,717.20, 814,020.60 and 543,717.20

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Solution

The fourth proportional to 543,717.20, 814,020.60 and 543,717.20 is: 814,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,717.20 : 814,020.60 = 543,717.20 : x
  2. Step 2: Convert to fraction form
    543,717.20/814,020.60 = 543,717.20/x
  3. Step 3: Cross multiply
    543,717.20x = 814,020.60 × 543,717.20
  4. Step 4: Simplify right side
    543,717.20x = 442,597,001,374.32
  5. Step 5: Solve for x
    x = 442,597,001,374.32/543,717.20
  6. Step 6: Final answer
    x = 814,020.60

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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.