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Finding the Third Proportional to 627,318 and 1,335,555

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Solution

The third proportional to 627,318 and 1,335,555 is: 2,843,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,318 : 1,335,555 = 1,335,555 : x
  2. Step 2: Convert to fraction form
    627,318/1,335,555 = 1,335,555/x
  3. Step 3: Cross multiply
    627,318x = 1,335,555 × 1,335,555
  4. Step 4: Simplify right side
    627,318x = 1,783,707,158,025
  5. Step 5: Solve for x
    x = 1,783,707,158,025/627,318
  6. Step 6: Final answer
    x = 2,843,385.90

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.