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Finding the Fourth Proportional to 4,398.62, 6,591.98 and 1,622.68

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Solution

The fourth proportional to 4,398.62, 6,591.98 and 1,622.68 is: 2,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398.62 : 6,591.98 = 1,622.68 : x
  2. Step 2: Convert to fraction form
    4,398.62/6,591.98 = 1,622.68/x
  3. Step 3: Cross multiply
    4,398.62x = 6,591.98 × 1,622.68
  4. Step 4: Simplify right side
    4,398.62x = 10,696,674.11
  5. Step 5: Solve for x
    x = 10,696,674.11/4,398.62
  6. Step 6: Final answer
    x = 2,431.83

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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.