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Finding the Fourth Proportional to 1,394,991, 2,092,505.94 and 397,719

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Solution

The fourth proportional to 1,394,991, 2,092,505.94 and 397,719 is: 596,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,991 : 2,092,505.94 = 397,719 : x
  2. Step 2: Convert to fraction form
    1,394,991/2,092,505.94 = 397,719/x
  3. Step 3: Cross multiply
    1,394,991x = 2,092,505.94 × 397,719
  4. Step 4: Simplify right side
    1,394,991x = 832,229,369,950.86
  5. Step 5: Solve for x
    x = 832,229,369,950.86/1,394,991
  6. Step 6: Final answer
    x = 596,584.04

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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.