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Finding the Third Proportional to 1,211,863 and 1,879,037

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Solution

The third proportional to 1,211,863 and 1,879,037 is: 2,913,514.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,863 : 1,879,037 = 1,879,037 : x
  2. Step 2: Convert to fraction form
    1,211,863/1,879,037 = 1,879,037/x
  3. Step 3: Cross multiply
    1,211,863x = 1,879,037 × 1,879,037
  4. Step 4: Simplify right side
    1,211,863x = 3,530,780,047,369
  5. Step 5: Solve for x
    x = 3,530,780,047,369/1,211,863
  6. Step 6: Final answer
    x = 2,913,514.19

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.