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Finding the Third Proportional to 990,192 and 2,165,856

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Solution

The third proportional to 990,192 and 2,165,856 is: 4,737,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,192 : 2,165,856 = 2,165,856 : x
  2. Step 2: Convert to fraction form
    990,192/2,165,856 = 2,165,856/x
  3. Step 3: Cross multiply
    990,192x = 2,165,856 × 2,165,856
  4. Step 4: Simplify right side
    990,192x = 4,690,932,212,736
  5. Step 5: Solve for x
    x = 4,690,932,212,736/990,192
  6. Step 6: Final answer
    x = 4,737,396.60

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.