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Finding the Third Proportional to 669,335 and 1,019,691

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Solution

The third proportional to 669,335 and 1,019,691 is: 1,553,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,335 : 1,019,691 = 1,019,691 : x
  2. Step 2: Convert to fraction form
    669,335/1,019,691 = 1,019,691/x
  3. Step 3: Cross multiply
    669,335x = 1,019,691 × 1,019,691
  4. Step 4: Simplify right side
    669,335x = 1,039,769,735,481
  5. Step 5: Solve for x
    x = 1,039,769,735,481/669,335
  6. Step 6: Final answer
    x = 1,553,436.97

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.