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Finding the Fourth Proportional to 619,659.64, 855,137.18 and 344,036.27

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Solution

The fourth proportional to 619,659.64, 855,137.18 and 344,036.27 is: 474,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,659.64 : 855,137.18 = 344,036.27 : x
  2. Step 2: Convert to fraction form
    619,659.64/855,137.18 = 344,036.27/x
  3. Step 3: Cross multiply
    619,659.64x = 855,137.18 × 344,036.27
  4. Step 4: Simplify right side
    619,659.64x = 294,198,206,605.61
  5. Step 5: Solve for x
    x = 294,198,206,605.61/619,659.64
  6. Step 6: Final answer
    x = 474,773.88

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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.