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Finding the Third Proportional to 1,219,440 and 1,811,472.75

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Solution

The third proportional to 1,219,440 and 1,811,472.75 is: 2,690,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,440 : 1,811,472.75 = 1,811,472.75 : x
  2. Step 2: Convert to fraction form
    1,219,440/1,811,472.75 = 1,811,472.75/x
  3. Step 3: Cross multiply
    1,219,440x = 1,811,472.75 × 1,811,472.75
  4. Step 4: Simplify right side
    1,219,440x = 3,281,433,523,992.56
  5. Step 5: Solve for x
    x = 3,281,433,523,992.56/1,219,440
  6. Step 6: Final answer
    x = 2,690,934.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.