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Finding the Fourth Proportional to 2,423.24, 3,633.78 and 691.46

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Solution

The fourth proportional to 2,423.24, 3,633.78 and 691.46 is: 1,036.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.24 : 3,633.78 = 691.46 : x
  2. Step 2: Convert to fraction form
    2,423.24/3,633.78 = 691.46/x
  3. Step 3: Cross multiply
    2,423.24x = 3,633.78 × 691.46
  4. Step 4: Simplify right side
    2,423.24x = 2,512,613.52
  5. Step 5: Solve for x
    x = 2,512,613.52/2,423.24
  6. Step 6: Final answer
    x = 1,036.88

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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.