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Finding the Third Proportional to 476,107 and 991,670

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Solution

The third proportional to 476,107 and 991,670 is: 2,065,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,107 : 991,670 = 991,670 : x
  2. Step 2: Convert to fraction form
    476,107/991,670 = 991,670/x
  3. Step 3: Cross multiply
    476,107x = 991,670 × 991,670
  4. Step 4: Simplify right side
    476,107x = 983,409,388,900
  5. Step 5: Solve for x
    x = 983,409,388,900/476,107
  6. Step 6: Final answer
    x = 2,065,521.80

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.