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Finding the Third Proportional to 291,536 and 627,808

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Solution

The third proportional to 291,536 and 627,808 is: 1,351,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,536 : 627,808 = 627,808 : x
  2. Step 2: Convert to fraction form
    291,536/627,808 = 627,808/x
  3. Step 3: Cross multiply
    291,536x = 627,808 × 627,808
  4. Step 4: Simplify right side
    291,536x = 394,142,884,864
  5. Step 5: Solve for x
    x = 394,142,884,864/291,536
  6. Step 6: Final answer
    x = 1,351,952.71

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.