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Finding the Third Proportional to 445.92 and 655.59

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Solution

The third proportional to 445.92 and 655.59 is: 963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.92 : 655.59 = 655.59 : x
  2. Step 2: Convert to fraction form
    445.92/655.59 = 655.59/x
  3. Step 3: Cross multiply
    445.92x = 655.59 × 655.59
  4. Step 4: Simplify right side
    445.92x = 429,803.17
  5. Step 5: Solve for x
    x = 429,803.17/445.92
  6. Step 6: Final answer
    x = 963.85

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.