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Finding the Third Proportional to 911,650 and 1,998,246

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Solution

The third proportional to 911,650 and 1,998,246 is: 4,379,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,650 : 1,998,246 = 1,998,246 : x
  2. Step 2: Convert to fraction form
    911,650/1,998,246 = 1,998,246/x
  3. Step 3: Cross multiply
    911,650x = 1,998,246 × 1,998,246
  4. Step 4: Simplify right side
    911,650x = 3,992,987,076,516
  5. Step 5: Solve for x
    x = 3,992,987,076,516/911,650
  6. Step 6: Final answer
    x = 4,379,956.21

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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.