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Finding the Third Proportional to 326.75 and 543.25

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Solution

The third proportional to 326.75 and 543.25 is: 903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.75 : 543.25 = 543.25 : x
  2. Step 2: Convert to fraction form
    326.75/543.25 = 543.25/x
  3. Step 3: Cross multiply
    326.75x = 543.25 × 543.25
  4. Step 4: Simplify right side
    326.75x = 295,120.56
  5. Step 5: Solve for x
    x = 295,120.56/326.75
  6. Step 6: Final answer
    x = 903.20

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.