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Finding the Third Proportional to 522,988 and 1,128,920

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Solution

The third proportional to 522,988 and 1,128,920 is: 2,436,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,988 : 1,128,920 = 1,128,920 : x
  2. Step 2: Convert to fraction form
    522,988/1,128,920 = 1,128,920/x
  3. Step 3: Cross multiply
    522,988x = 1,128,920 × 1,128,920
  4. Step 4: Simplify right side
    522,988x = 1,274,460,366,400
  5. Step 5: Solve for x
    x = 1,274,460,366,400/522,988
  6. Step 6: Final answer
    x = 2,436,882.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.