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Finding the Third Proportional to 492,717 and 741,272

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Solution

The third proportional to 492,717 and 741,272 is: 1,115,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,717 : 741,272 = 741,272 : x
  2. Step 2: Convert to fraction form
    492,717/741,272 = 741,272/x
  3. Step 3: Cross multiply
    492,717x = 741,272 × 741,272
  4. Step 4: Simplify right side
    492,717x = 549,484,177,984
  5. Step 5: Solve for x
    x = 549,484,177,984/492,717
  6. Step 6: Final answer
    x = 1,115,212.54

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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.