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Finding the Third Proportional to 219.88 and 346.75

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Solution

The third proportional to 219.88 and 346.75 is: 546.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.88 : 346.75 = 346.75 : x
  2. Step 2: Convert to fraction form
    219.88/346.75 = 346.75/x
  3. Step 3: Cross multiply
    219.88x = 346.75 × 346.75
  4. Step 4: Simplify right side
    219.88x = 120,235.56
  5. Step 5: Solve for x
    x = 120,235.56/219.88
  6. Step 6: Final answer
    x = 546.84

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.