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Finding the Fourth Proportional to 365,781.96, 504,951.67 and 275,172.42

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Solution

The fourth proportional to 365,781.96, 504,951.67 and 275,172.42 is: 379,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,781.96 : 504,951.67 = 275,172.42 : x
  2. Step 2: Convert to fraction form
    365,781.96/504,951.67 = 275,172.42/x
  3. Step 3: Cross multiply
    365,781.96x = 504,951.67 × 275,172.42
  4. Step 4: Simplify right side
    365,781.96x = 138,948,775,254.48
  5. Step 5: Solve for x
    x = 138,948,775,254.48/365,781.96
  6. Step 6: Final answer
    x = 379,867.76

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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.