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Finding the Third Proportional to 201,924 and 316,777

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Solution

The third proportional to 201,924 and 316,777 is: 496,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,924 : 316,777 = 316,777 : x
  2. Step 2: Convert to fraction form
    201,924/316,777 = 316,777/x
  3. Step 3: Cross multiply
    201,924x = 316,777 × 316,777
  4. Step 4: Simplify right side
    201,924x = 100,347,667,729
  5. Step 5: Solve for x
    x = 100,347,667,729/201,924
  6. Step 6: Final answer
    x = 496,957.61

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.