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Finding the Third Proportional to 931,685 and 2,005,915

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Solution

The third proportional to 931,685 and 2,005,915 is: 4,318,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,685 : 2,005,915 = 2,005,915 : x
  2. Step 2: Convert to fraction form
    931,685/2,005,915 = 2,005,915/x
  3. Step 3: Cross multiply
    931,685x = 2,005,915 × 2,005,915
  4. Step 4: Simplify right side
    931,685x = 4,023,694,987,225
  5. Step 5: Solve for x
    x = 4,023,694,987,225/931,685
  6. Step 6: Final answer
    x = 4,318,728.96

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.