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Finding the Third Proportional to 314.50 and 419

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Solution

The third proportional to 314.50 and 419 is: 558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.50 : 419 = 419 : x
  2. Step 2: Convert to fraction form
    314.50/419 = 419/x
  3. Step 3: Cross multiply
    314.50x = 419 × 419
  4. Step 4: Simplify right side
    314.50x = 175,561
  5. Step 5: Solve for x
    x = 175,561/314.50
  6. Step 6: Final answer
    x = 558.22

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These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.