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Finding the Third Proportional to 989,436 and 2,168,244

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Solution

The third proportional to 989,436 and 2,168,244 is: 4,751,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,436 : 2,168,244 = 2,168,244 : x
  2. Step 2: Convert to fraction form
    989,436/2,168,244 = 2,168,244/x
  3. Step 3: Cross multiply
    989,436x = 2,168,244 × 2,168,244
  4. Step 4: Simplify right side
    989,436x = 4,701,282,043,536
  5. Step 5: Solve for x
    x = 4,701,282,043,536/989,436
  6. Step 6: Final answer
    x = 4,751,476.64

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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.