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Finding the Third Proportional to 1,317,211 and 1,986,191

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Solution

The third proportional to 1,317,211 and 1,986,191 is: 2,994,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,211 : 1,986,191 = 1,986,191 : x
  2. Step 2: Convert to fraction form
    1,317,211/1,986,191 = 1,986,191/x
  3. Step 3: Cross multiply
    1,317,211x = 1,986,191 × 1,986,191
  4. Step 4: Simplify right side
    1,317,211x = 3,944,954,688,481
  5. Step 5: Solve for x
    x = 3,944,954,688,481/1,317,211
  6. Step 6: Final answer
    x = 2,994,929.96

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.