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Finding the Third Proportional to 818,581 and 1,721,995

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Solution

The third proportional to 818,581 and 1,721,995 is: 3,622,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,581 : 1,721,995 = 1,721,995 : x
  2. Step 2: Convert to fraction form
    818,581/1,721,995 = 1,721,995/x
  3. Step 3: Cross multiply
    818,581x = 1,721,995 × 1,721,995
  4. Step 4: Simplify right side
    818,581x = 2,965,266,780,025
  5. Step 5: Solve for x
    x = 2,965,266,780,025/818,581
  6. Step 6: Final answer
    x = 3,622,447.60

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.