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Finding the Fourth Proportional to 503,610.50, 694,959.82 and 274,161.92

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Solution

The fourth proportional to 503,610.50, 694,959.82 and 274,161.92 is: 378,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,610.50 : 694,959.82 = 274,161.92 : x
  2. Step 2: Convert to fraction form
    503,610.50/694,959.82 = 274,161.92/x
  3. Step 3: Cross multiply
    503,610.50x = 694,959.82 × 274,161.92
  4. Step 4: Simplify right side
    503,610.50x = 190,531,513,728.45
  5. Step 5: Solve for x
    x = 190,531,513,728.45/503,610.50
  6. Step 6: Final answer
    x = 378,331.10

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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.