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Finding the Third Proportional to 787,578 and 1,717,695

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Solution

The third proportional to 787,578 and 1,717,695 is: 3,746,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,578 : 1,717,695 = 1,717,695 : x
  2. Step 2: Convert to fraction form
    787,578/1,717,695 = 1,717,695/x
  3. Step 3: Cross multiply
    787,578x = 1,717,695 × 1,717,695
  4. Step 4: Simplify right side
    787,578x = 2,950,476,113,025
  5. Step 5: Solve for x
    x = 2,950,476,113,025/787,578
  6. Step 6: Final answer
    x = 3,746,265.28

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.