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Finding the Third Proportional to 911,515 and 1,987,047

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Solution

The third proportional to 911,515 and 1,987,047 is: 4,331,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,515 : 1,987,047 = 1,987,047 : x
  2. Step 2: Convert to fraction form
    911,515/1,987,047 = 1,987,047/x
  3. Step 3: Cross multiply
    911,515x = 1,987,047 × 1,987,047
  4. Step 4: Simplify right side
    911,515x = 3,948,355,780,209
  5. Step 5: Solve for x
    x = 3,948,355,780,209/911,515
  6. Step 6: Final answer
    x = 4,331,641.04

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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.