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Finding the Third Proportional to 778,234 and 1,676,531

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Solution

The third proportional to 778,234 and 1,676,531 is: 3,611,710.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,234 : 1,676,531 = 1,676,531 : x
  2. Step 2: Convert to fraction form
    778,234/1,676,531 = 1,676,531/x
  3. Step 3: Cross multiply
    778,234x = 1,676,531 × 1,676,531
  4. Step 4: Simplify right side
    778,234x = 2,810,756,193,961
  5. Step 5: Solve for x
    x = 2,810,756,193,961/778,234
  6. Step 6: Final answer
    x = 3,611,710.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.