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Finding the Third Proportional to 316.75 and 733.25

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Solution

The third proportional to 316.75 and 733.25 is: 1,697.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.75 : 733.25 = 733.25 : x
  2. Step 2: Convert to fraction form
    316.75/733.25 = 733.25/x
  3. Step 3: Cross multiply
    316.75x = 733.25 × 733.25
  4. Step 4: Simplify right side
    316.75x = 537,655.56
  5. Step 5: Solve for x
    x = 537,655.56/316.75
  6. Step 6: Final answer
    x = 1,697.41

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.