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Finding the Third Proportional to 335.50 and 476.75

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Solution

The third proportional to 335.50 and 476.75 is: 677.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.50 : 476.75 = 476.75 : x
  2. Step 2: Convert to fraction form
    335.50/476.75 = 476.75/x
  3. Step 3: Cross multiply
    335.50x = 476.75 × 476.75
  4. Step 4: Simplify right side
    335.50x = 227,290.56
  5. Step 5: Solve for x
    x = 227,290.56/335.50
  6. Step 6: Final answer
    x = 677.47

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.