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Finding the Third Proportional to 855,519 and 1,858,845

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Solution

The third proportional to 855,519 and 1,858,845 is: 4,038,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,519 : 1,858,845 = 1,858,845 : x
  2. Step 2: Convert to fraction form
    855,519/1,858,845 = 1,858,845/x
  3. Step 3: Cross multiply
    855,519x = 1,858,845 × 1,858,845
  4. Step 4: Simplify right side
    855,519x = 3,455,304,734,025
  5. Step 5: Solve for x
    x = 3,455,304,734,025/855,519
  6. Step 6: Final answer
    x = 4,038,840.44

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.