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Finding the Fourth Proportional to 5,598,391.82, 8,398,920.38 and 1,811,874.69

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Solution

The fourth proportional to 5,598,391.82, 8,398,920.38 and 1,811,874.69 is: 2,718,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,598,391.82 : 8,398,920.38 = 1,811,874.69 : x
  2. Step 2: Convert to fraction form
    5,598,391.82/8,398,920.38 = 1,811,874.69/x
  3. Step 3: Cross multiply
    5,598,391.82x = 8,398,920.38 × 1,811,874.69
  4. Step 4: Simplify right side
    5,598,391.82x = 15,217,791,250,787.81
  5. Step 5: Solve for x
    x = 15,217,791,250,787.81/5,598,391.82
  6. Step 6: Final answer
    x = 2,718,243.34

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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.