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Finding the Third Proportional to 360,286 and 783,992

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Solution

The third proportional to 360,286 and 783,992 is: 1,705,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,286 : 783,992 = 783,992 : x
  2. Step 2: Convert to fraction form
    360,286/783,992 = 783,992/x
  3. Step 3: Cross multiply
    360,286x = 783,992 × 783,992
  4. Step 4: Simplify right side
    360,286x = 614,643,456,064
  5. Step 5: Solve for x
    x = 614,643,456,064/360,286
  6. Step 6: Final answer
    x = 1,705,987.62

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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.