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Finding the Third Proportional to 678,061.13 and 1,486,198.13

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Solution

The third proportional to 678,061.13 and 1,486,198.13 is: 3,257,501.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,061.13 : 1,486,198.13 = 1,486,198.13 : x
  2. Step 2: Convert to fraction form
    678,061.13/1,486,198.13 = 1,486,198.13/x
  3. Step 3: Cross multiply
    678,061.13x = 1,486,198.13 × 1,486,198.13
  4. Step 4: Simplify right side
    678,061.13x = 2,208,784,866,753.52
  5. Step 5: Solve for x
    x = 2,208,784,866,753.52/678,061.13
  6. Step 6: Final answer
    x = 3,257,501.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.