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Finding the Third Proportional to 475.94 and 679.13

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Solution

The third proportional to 475.94 and 679.13 is: 969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.94 : 679.13 = 679.13 : x
  2. Step 2: Convert to fraction form
    475.94/679.13 = 679.13/x
  3. Step 3: Cross multiply
    475.94x = 679.13 × 679.13
  4. Step 4: Simplify right side
    475.94x = 461,210.77
  5. Step 5: Solve for x
    x = 461,210.77/475.94
  6. Step 6: Final answer
    x = 969.06

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.