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Finding the Third Proportional to 988,366 and 2,165,840

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Solution

The third proportional to 988,366 and 2,165,840 is: 4,746,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,366 : 2,165,840 = 2,165,840 : x
  2. Step 2: Convert to fraction form
    988,366/2,165,840 = 2,165,840/x
  3. Step 3: Cross multiply
    988,366x = 2,165,840 × 2,165,840
  4. Step 4: Simplify right side
    988,366x = 4,690,862,905,600
  5. Step 5: Solve for x
    x = 4,690,862,905,600/988,366
  6. Step 6: Final answer
    x = 4,746,078.79

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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.