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Finding the Third Proportional to 444.75 and 646.88

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Solution

The third proportional to 444.75 and 646.88 is: 940.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.75 : 646.88 = 646.88 : x
  2. Step 2: Convert to fraction form
    444.75/646.88 = 646.88/x
  3. Step 3: Cross multiply
    444.75x = 646.88 × 646.88
  4. Step 4: Simplify right side
    444.75x = 418,447.27
  5. Step 5: Solve for x
    x = 418,447.27/444.75
  6. Step 6: Final answer
    x = 940.86

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.