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Finding the Fourth Proportional to 373,769.28, 515,868.48 and 222,876

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Solution

The fourth proportional to 373,769.28, 515,868.48 and 222,876 is: 307,608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,769.28 : 515,868.48 = 222,876 : x
  2. Step 2: Convert to fraction form
    373,769.28/515,868.48 = 222,876/x
  3. Step 3: Cross multiply
    373,769.28x = 515,868.48 × 222,876
  4. Step 4: Simplify right side
    373,769.28x = 114,974,703,348.48
  5. Step 5: Solve for x
    x = 114,974,703,348.48/373,769.28
  6. Step 6: Final answer
    x = 307,608.76

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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.