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Finding the Fourth Proportional to 503,207.28, 694,431.54 and 273,765.86

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Solution

The fourth proportional to 503,207.28, 694,431.54 and 273,765.86 is: 377,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,207.28 : 694,431.54 = 273,765.86 : x
  2. Step 2: Convert to fraction form
    503,207.28/694,431.54 = 273,765.86/x
  3. Step 3: Cross multiply
    503,207.28x = 694,431.54 × 273,765.86
  4. Step 4: Simplify right side
    503,207.28x = 190,111,647,759.22
  5. Step 5: Solve for x
    x = 190,111,647,759.22/503,207.28
  6. Step 6: Final answer
    x = 377,799.88

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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.