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Finding the Fourth Proportional to 412,791.52, 569,714.58 and 251,739.98

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Solution

The fourth proportional to 412,791.52, 569,714.58 and 251,739.98 is: 347,439.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,791.52 : 569,714.58 = 251,739.98 : x
  2. Step 2: Convert to fraction form
    412,791.52/569,714.58 = 251,739.98/x
  3. Step 3: Cross multiply
    412,791.52x = 569,714.58 × 251,739.98
  4. Step 4: Simplify right side
    412,791.52x = 143,419,936,974.91
  5. Step 5: Solve for x
    x = 143,419,936,974.91/412,791.52
  6. Step 6: Final answer
    x = 347,439.16

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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.