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Finding the Third Proportional to 858,501 and 1,787,657

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Solution

The third proportional to 858,501 and 1,787,657 is: 3,722,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,501 : 1,787,657 = 1,787,657 : x
  2. Step 2: Convert to fraction form
    858,501/1,787,657 = 1,787,657/x
  3. Step 3: Cross multiply
    858,501x = 1,787,657 × 1,787,657
  4. Step 4: Simplify right side
    858,501x = 3,195,717,549,649
  5. Step 5: Solve for x
    x = 3,195,717,549,649/858,501
  6. Step 6: Final answer
    x = 3,722,438.94

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.