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Finding the Third Proportional to 774,381 and 1,660,861

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Solution

The third proportional to 774,381 and 1,660,861 is: 3,562,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,381 : 1,660,861 = 1,660,861 : x
  2. Step 2: Convert to fraction form
    774,381/1,660,861 = 1,660,861/x
  3. Step 3: Cross multiply
    774,381x = 1,660,861 × 1,660,861
  4. Step 4: Simplify right side
    774,381x = 2,758,459,261,321
  5. Step 5: Solve for x
    x = 2,758,459,261,321/774,381
  6. Step 6: Final answer
    x = 3,562,147.39

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.