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Finding the Third Proportional to 715,880 and 1,001,378

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Solution

The third proportional to 715,880 and 1,001,378 is: 1,400,734.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,880 : 1,001,378 = 1,001,378 : x
  2. Step 2: Convert to fraction form
    715,880/1,001,378 = 1,001,378/x
  3. Step 3: Cross multiply
    715,880x = 1,001,378 × 1,001,378
  4. Step 4: Simplify right side
    715,880x = 1,002,757,898,884
  5. Step 5: Solve for x
    x = 1,002,757,898,884/715,880
  6. Step 6: Final answer
    x = 1,400,734.62

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.