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Finding the Fourth Proportional to 2,324.57, 3,486.55 and 863.53

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Solution

The fourth proportional to 2,324.57, 3,486.55 and 863.53 is: 1,295.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,324.57 : 3,486.55 = 863.53 : x
  2. Step 2: Convert to fraction form
    2,324.57/3,486.55 = 863.53/x
  3. Step 3: Cross multiply
    2,324.57x = 3,486.55 × 863.53
  4. Step 4: Simplify right side
    2,324.57x = 3,010,732.88
  5. Step 5: Solve for x
    x = 3,010,732.88/2,324.57
  6. Step 6: Final answer
    x = 1,295.18

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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.