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Finding the Third Proportional to 330.25 and 741.25

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Solution

The third proportional to 330.25 and 741.25 is: 1,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.25 : 741.25 = 741.25 : x
  2. Step 2: Convert to fraction form
    330.25/741.25 = 741.25/x
  3. Step 3: Cross multiply
    330.25x = 741.25 × 741.25
  4. Step 4: Simplify right side
    330.25x = 549,451.56
  5. Step 5: Solve for x
    x = 549,451.56/330.25
  6. Step 6: Final answer
    x = 1,663.74

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.