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Finding the Fourth Proportional to 2,282.14, 3,423.20 and 743.14

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Solution

The fourth proportional to 2,282.14, 3,423.20 and 743.14 is: 1,114.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.14 : 3,423.20 = 743.14 : x
  2. Step 2: Convert to fraction form
    2,282.14/3,423.20 = 743.14/x
  3. Step 3: Cross multiply
    2,282.14x = 3,423.20 × 743.14
  4. Step 4: Simplify right side
    2,282.14x = 2,543,917.41
  5. Step 5: Solve for x
    x = 2,543,917.41/2,282.14
  6. Step 6: Final answer
    x = 1,114.71

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1.5x scale

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.