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Finding the Fourth Proportional to 543,422.56, 814,248.40 and 332,618.08

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Solution

The fourth proportional to 543,422.56, 814,248.40 and 332,618.08 is: 498,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,422.56 : 814,248.40 = 332,618.08 : x
  2. Step 2: Convert to fraction form
    543,422.56/814,248.40 = 332,618.08/x
  3. Step 3: Cross multiply
    543,422.56x = 814,248.40 × 332,618.08
  4. Step 4: Simplify right side
    543,422.56x = 270,833,739,451.07
  5. Step 5: Solve for x
    x = 270,833,739,451.07/543,422.56
  6. Step 6: Final answer
    x = 498,385.16

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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.