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Finding the Third Proportional to 859,980 and 2,008,200

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Solution

The third proportional to 859,980 and 2,008,200 is: 4,689,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,980 : 2,008,200 = 2,008,200 : x
  2. Step 2: Convert to fraction form
    859,980/2,008,200 = 2,008,200/x
  3. Step 3: Cross multiply
    859,980x = 2,008,200 × 2,008,200
  4. Step 4: Simplify right side
    859,980x = 4,032,867,240,000
  5. Step 5: Solve for x
    x = 4,032,867,240,000/859,980
  6. Step 6: Final answer
    x = 4,689,489.57

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.