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Finding the Third Proportional to 315,266 and 476,170

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Solution

The third proportional to 315,266 and 476,170 is: 719,195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,266 : 476,170 = 476,170 : x
  2. Step 2: Convert to fraction form
    315,266/476,170 = 476,170/x
  3. Step 3: Cross multiply
    315,266x = 476,170 × 476,170
  4. Step 4: Simplify right side
    315,266x = 226,737,868,900
  5. Step 5: Solve for x
    x = 226,737,868,900/315,266
  6. Step 6: Final answer
    x = 719,195.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.