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Finding the Third Proportional to 656,629 and 1,437,815

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Solution

The third proportional to 656,629 and 1,437,815 is: 3,148,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,629 : 1,437,815 = 1,437,815 : x
  2. Step 2: Convert to fraction form
    656,629/1,437,815 = 1,437,815/x
  3. Step 3: Cross multiply
    656,629x = 1,437,815 × 1,437,815
  4. Step 4: Simplify right side
    656,629x = 2,067,311,974,225
  5. Step 5: Solve for x
    x = 2,067,311,974,225/656,629
  6. Step 6: Final answer
    x = 3,148,371.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.