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Finding the Fourth Proportional to 3,886,295.31, 5,834,494.51 and 2,988,367.61

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Solution

The fourth proportional to 3,886,295.31, 5,834,494.51 and 2,988,367.61 is: 4,486,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886,295.31 : 5,834,494.51 = 2,988,367.61 : x
  2. Step 2: Convert to fraction form
    3,886,295.31/5,834,494.51 = 2,988,367.61/x
  3. Step 3: Cross multiply
    3,886,295.31x = 5,834,494.51 × 2,988,367.61
  4. Step 4: Simplify right side
    3,886,295.31x = 17,435,614,421,522.14
  5. Step 5: Solve for x
    x = 17,435,614,421,522.14/3,886,295.31
  6. Step 6: Final answer
    x = 4,486,435.80

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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.