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Finding the Third Proportional to 449.44 and 586.13

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Solution

The third proportional to 449.44 and 586.13 is: 764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.44 : 586.13 = 586.13 : x
  2. Step 2: Convert to fraction form
    449.44/586.13 = 586.13/x
  3. Step 3: Cross multiply
    449.44x = 586.13 × 586.13
  4. Step 4: Simplify right side
    449.44x = 343,542.52
  5. Step 5: Solve for x
    x = 343,542.52/449.44
  6. Step 6: Final answer
    x = 764.38

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.