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Finding the Fourth Proportional to 439,761.54, 606,872.09 and 238,557.54

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Solution

The fourth proportional to 439,761.54, 606,872.09 and 238,557.54 is: 329,210.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,761.54 : 606,872.09 = 238,557.54 : x
  2. Step 2: Convert to fraction form
    439,761.54/606,872.09 = 238,557.54/x
  3. Step 3: Cross multiply
    439,761.54x = 606,872.09 × 238,557.54
  4. Step 4: Simplify right side
    439,761.54x = 144,773,911,692.27
  5. Step 5: Solve for x
    x = 144,773,911,692.27/439,761.54
  6. Step 6: Final answer
    x = 329,210.03

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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.