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Finding the Third Proportional to 980,694 and 2,124,136.50

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Solution

The third proportional to 980,694 and 2,124,136.50 is: 4,600,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,694 : 2,124,136.50 = 2,124,136.50 : x
  2. Step 2: Convert to fraction form
    980,694/2,124,136.50 = 2,124,136.50/x
  3. Step 3: Cross multiply
    980,694x = 2,124,136.50 × 2,124,136.50
  4. Step 4: Simplify right side
    980,694x = 4,511,955,870,632.25
  5. Step 5: Solve for x
    x = 4,511,955,870,632.25/980,694
  6. Step 6: Final answer
    x = 4,600,778.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.