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Finding the Third Proportional to 788,639 and 1,715,675

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Solution

The third proportional to 788,639 and 1,715,675 is: 3,732,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,639 : 1,715,675 = 1,715,675 : x
  2. Step 2: Convert to fraction form
    788,639/1,715,675 = 1,715,675/x
  3. Step 3: Cross multiply
    788,639x = 1,715,675 × 1,715,675
  4. Step 4: Simplify right side
    788,639x = 2,943,540,705,625
  5. Step 5: Solve for x
    x = 2,943,540,705,625/788,639
  6. Step 6: Final answer
    x = 3,732,431.07

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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.