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Finding the Fourth Proportional to 3,279,951.82, 4,921,348.59 and 1,761,863.41

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Solution

The fourth proportional to 3,279,951.82, 4,921,348.59 and 1,761,863.41 is: 2,643,558.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279,951.82 : 4,921,348.59 = 1,761,863.41 : x
  2. Step 2: Convert to fraction form
    3,279,951.82/4,921,348.59 = 1,761,863.41/x
  3. Step 3: Cross multiply
    3,279,951.82x = 4,921,348.59 × 1,761,863.41
  4. Step 4: Simplify right side
    3,279,951.82x = 8,670,744,008,576.09
  5. Step 5: Solve for x
    x = 8,670,744,008,576.09/3,279,951.82
  6. Step 6: Final answer
    x = 2,643,558.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.