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Finding the Third Proportional to 1,286,611 and 1,892,489

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Solution

The third proportional to 1,286,611 and 1,892,489 is: 2,783,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,611 : 1,892,489 = 1,892,489 : x
  2. Step 2: Convert to fraction form
    1,286,611/1,892,489 = 1,892,489/x
  3. Step 3: Cross multiply
    1,286,611x = 1,892,489 × 1,892,489
  4. Step 4: Simplify right side
    1,286,611x = 3,581,514,615,121
  5. Step 5: Solve for x
    x = 3,581,514,615,121/1,286,611
  6. Step 6: Final answer
    x = 2,783,681.02

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.