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Finding the Third Proportional to 349.50 and 606.75

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Solution

The third proportional to 349.50 and 606.75 is: 1,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.50 : 606.75 = 606.75 : x
  2. Step 2: Convert to fraction form
    349.50/606.75 = 606.75/x
  3. Step 3: Cross multiply
    349.50x = 606.75 × 606.75
  4. Step 4: Simplify right side
    349.50x = 368,145.56
  5. Step 5: Solve for x
    x = 368,145.56/349.50
  6. Step 6: Final answer
    x = 1,053.35

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.