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Finding the Fourth Proportional to 557,080.31, 768,773.97 and 327,647.27

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Solution

The fourth proportional to 557,080.31, 768,773.97 and 327,647.27 is: 452,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,080.31 : 768,773.97 = 327,647.27 : x
  2. Step 2: Convert to fraction form
    557,080.31/768,773.97 = 327,647.27/x
  3. Step 3: Cross multiply
    557,080.31x = 768,773.97 × 327,647.27
  4. Step 4: Simplify right side
    557,080.31x = 251,886,692,517.56
  5. Step 5: Solve for x
    x = 251,886,692,517.56/557,080.31
  6. Step 6: Final answer
    x = 452,155.08

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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.