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Finding the Fourth Proportional to 483,479.73, 667,406.61 and 326,349.72

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Solution

The fourth proportional to 483,479.73, 667,406.61 and 326,349.72 is: 450,500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,479.73 : 667,406.61 = 326,349.72 : x
  2. Step 2: Convert to fraction form
    483,479.73/667,406.61 = 326,349.72/x
  3. Step 3: Cross multiply
    483,479.73x = 667,406.61 × 326,349.72
  4. Step 4: Simplify right side
    483,479.73x = 217,807,960,299.65
  5. Step 5: Solve for x
    x = 217,807,960,299.65/483,479.73
  6. Step 6: Final answer
    x = 450,500.71

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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.