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Finding the Third Proportional to 668,991 and 1,019,171

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Solution

The third proportional to 668,991 and 1,019,171 is: 1,552,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,991 : 1,019,171 = 1,019,171 : x
  2. Step 2: Convert to fraction form
    668,991/1,019,171 = 1,019,171/x
  3. Step 3: Cross multiply
    668,991x = 1,019,171 × 1,019,171
  4. Step 4: Simplify right side
    668,991x = 1,038,709,527,241
  5. Step 5: Solve for x
    x = 1,038,709,527,241/668,991
  6. Step 6: Final answer
    x = 1,552,650.97

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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.