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Finding the Third Proportional to 263 and 447.50

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Solution

The third proportional to 263 and 447.50 is: 761.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    263 : 447.50 = 447.50 : x
  2. Step 2: Convert to fraction form
    263/447.50 = 447.50/x
  3. Step 3: Cross multiply
    263x = 447.50 × 447.50
  4. Step 4: Simplify right side
    263x = 200,256.25
  5. Step 5: Solve for x
    x = 200,256.25/263
  6. Step 6: Final answer
    x = 761.43

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.