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Finding the Fourth Proportional to 344,090.70, 515,884.41 and 231,490.98

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Solution

The fourth proportional to 344,090.70, 515,884.41 and 231,490.98 is: 347,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,090.70 : 515,884.41 = 231,490.98 : x
  2. Step 2: Convert to fraction form
    344,090.70/515,884.41 = 231,490.98/x
  3. Step 3: Cross multiply
    344,090.70x = 515,884.41 × 231,490.98
  4. Step 4: Simplify right side
    344,090.70x = 119,422,587,637.62
  5. Step 5: Solve for x
    x = 119,422,587,637.62/344,090.70
  6. Step 6: Final answer
    x = 347,067.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.