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Finding the Fourth Proportional to 439,807.97, 606,936.17 and 238,603.97

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Solution

The fourth proportional to 439,807.97, 606,936.17 and 238,603.97 is: 329,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,807.97 : 606,936.17 = 238,603.97 : x
  2. Step 2: Convert to fraction form
    439,807.97/606,936.17 = 238,603.97/x
  3. Step 3: Cross multiply
    439,807.97x = 606,936.17 × 238,603.97
  4. Step 4: Simplify right side
    439,807.97x = 144,817,379,698.60
  5. Step 5: Solve for x
    x = 144,817,379,698.60/439,807.97
  6. Step 6: Final answer
    x = 329,274.11

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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.