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Finding the Third Proportional to 818,690 and 1,761,796

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Solution

The third proportional to 818,690 and 1,761,796 is: 3,791,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,690 : 1,761,796 = 1,761,796 : x
  2. Step 2: Convert to fraction form
    818,690/1,761,796 = 1,761,796/x
  3. Step 3: Cross multiply
    818,690x = 1,761,796 × 1,761,796
  4. Step 4: Simplify right side
    818,690x = 3,103,925,145,616
  5. Step 5: Solve for x
    x = 3,103,925,145,616/818,690
  6. Step 6: Final answer
    x = 3,791,331.45

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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.