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Finding the Fourth Proportional to 483,631.96, 667,358.96 and 279,651.96

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Solution

The fourth proportional to 483,631.96, 667,358.96 and 279,651.96 is: 385,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,631.96 : 667,358.96 = 279,651.96 : x
  2. Step 2: Convert to fraction form
    483,631.96/667,358.96 = 279,651.96/x
  3. Step 3: Cross multiply
    483,631.96x = 667,358.96 × 279,651.96
  4. Step 4: Simplify right side
    483,631.96x = 186,628,241,187.56
  5. Step 5: Solve for x
    x = 186,628,241,187.56/483,631.96
  6. Step 6: Final answer
    x = 385,888.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.