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Finding the Fourth Proportional to 409,991.73, 565,789.17 and 237,943.28

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Solution

The fourth proportional to 409,991.73, 565,789.17 and 237,943.28 is: 328,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,991.73 : 565,789.17 = 237,943.28 : x
  2. Step 2: Convert to fraction form
    409,991.73/565,789.17 = 237,943.28/x
  3. Step 3: Cross multiply
    409,991.73x = 565,789.17 × 237,943.28
  4. Step 4: Simplify right side
    409,991.73x = 134,625,728,069.33
  5. Step 5: Solve for x
    x = 134,625,728,069.33/409,991.73
  6. Step 6: Final answer
    x = 328,362.06

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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.