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Finding the Fourth Proportional to 419,146.29, 628,667.46 and 119,653.11

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Solution

The fourth proportional to 419,146.29, 628,667.46 and 119,653.11 is: 179,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,146.29 : 628,667.46 = 119,653.11 : x
  2. Step 2: Convert to fraction form
    419,146.29/628,667.46 = 119,653.11/x
  3. Step 3: Cross multiply
    419,146.29x = 628,667.46 × 119,653.11
  4. Step 4: Simplify right side
    419,146.29x = 75,222,016,744.80
  5. Step 5: Solve for x
    x = 75,222,016,744.80/419,146.29
  6. Step 6: Final answer
    x = 179,464.83

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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.