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Finding the Third Proportional to 743,682 and 1,117,219

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Solution

The third proportional to 743,682 and 1,117,219 is: 1,678,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,682 : 1,117,219 = 1,117,219 : x
  2. Step 2: Convert to fraction form
    743,682/1,117,219 = 1,117,219/x
  3. Step 3: Cross multiply
    743,682x = 1,117,219 × 1,117,219
  4. Step 4: Simplify right side
    743,682x = 1,248,178,293,961
  5. Step 5: Solve for x
    x = 1,248,178,293,961/743,682
  6. Step 6: Final answer
    x = 1,678,376.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.