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Finding the Fourth Proportional to 439,761.79, 606,872.43 and 238,557.79

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Solution

The fourth proportional to 439,761.79, 606,872.43 and 238,557.79 is: 329,210.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,761.79 : 606,872.43 = 238,557.79 : x
  2. Step 2: Convert to fraction form
    439,761.79/606,872.43 = 238,557.79/x
  3. Step 3: Cross multiply
    439,761.79x = 606,872.43 × 238,557.79
  4. Step 4: Simplify right side
    439,761.79x = 144,774,145,712.73
  5. Step 5: Solve for x
    x = 144,774,145,712.73/439,761.79
  6. Step 6: Final answer
    x = 329,210.38

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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.