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Finding the Third Proportional to 320.06 and 474.75

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Solution

The third proportional to 320.06 and 474.75 is: 704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320.06 : 474.75 = 474.75 : x
  2. Step 2: Convert to fraction form
    320.06/474.75 = 474.75/x
  3. Step 3: Cross multiply
    320.06x = 474.75 × 474.75
  4. Step 4: Simplify right side
    320.06x = 225,387.56
  5. Step 5: Solve for x
    x = 225,387.56/320.06
  6. Step 6: Final answer
    x = 704.20

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.