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Finding the Third Proportional to 468 and 720.75

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Solution

The third proportional to 468 and 720.75 is: 1,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    468 : 720.75 = 720.75 : x
  2. Step 2: Convert to fraction form
    468/720.75 = 720.75/x
  3. Step 3: Cross multiply
    468x = 720.75 × 720.75
  4. Step 4: Simplify right side
    468x = 519,480.56
  5. Step 5: Solve for x
    x = 519,480.56/468
  6. Step 6: Final answer
    x = 1,110.00

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.