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Finding the Third Proportional to 314.75 and 472

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Solution

The third proportional to 314.75 and 472 is: 707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.75 : 472 = 472 : x
  2. Step 2: Convert to fraction form
    314.75/472 = 472/x
  3. Step 3: Cross multiply
    314.75x = 472 × 472
  4. Step 4: Simplify right side
    314.75x = 222,784
  5. Step 5: Solve for x
    x = 222,784/314.75
  6. Step 6: Final answer
    x = 707.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.