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Finding the Third Proportional to 330.88 and 710.75

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Solution

The third proportional to 330.88 and 710.75 is: 1,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.88 : 710.75 = 710.75 : x
  2. Step 2: Convert to fraction form
    330.88/710.75 = 710.75/x
  3. Step 3: Cross multiply
    330.88x = 710.75 × 710.75
  4. Step 4: Simplify right side
    330.88x = 505,165.56
  5. Step 5: Solve for x
    x = 505,165.56/330.88
  6. Step 6: Final answer
    x = 1,526.76

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.