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Finding the Third Proportional to 264,996 and 396,486

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Solution

The third proportional to 264,996 and 396,486 is: 593,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,996 : 396,486 = 396,486 : x
  2. Step 2: Convert to fraction form
    264,996/396,486 = 396,486/x
  3. Step 3: Cross multiply
    264,996x = 396,486 × 396,486
  4. Step 4: Simplify right side
    264,996x = 157,201,148,196
  5. Step 5: Solve for x
    x = 157,201,148,196/264,996
  6. Step 6: Final answer
    x = 593,220.83

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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.