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Finding the Fourth Proportional to 503,531.54, 694,889.20 and 274,104.11

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Solution

The fourth proportional to 503,531.54, 694,889.20 and 274,104.11 is: 378,272.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,531.54 : 694,889.20 = 274,104.11 : x
  2. Step 2: Convert to fraction form
    503,531.54/694,889.20 = 274,104.11/x
  3. Step 3: Cross multiply
    503,531.54x = 694,889.20 × 274,104.11
  4. Step 4: Simplify right side
    503,531.54x = 190,471,982,343.88
  5. Step 5: Solve for x
    x = 190,471,982,343.88/503,531.54
  6. Step 6: Final answer
    x = 378,272.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.