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Finding the Fourth Proportional to 483,709.08, 667,704.56 and 322,505.20

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Solution

The fourth proportional to 483,709.08, 667,704.56 and 322,505.20 is: 445,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,709.08 : 667,704.56 = 322,505.20 : x
  2. Step 2: Convert to fraction form
    483,709.08/667,704.56 = 322,505.20/x
  3. Step 3: Cross multiply
    483,709.08x = 667,704.56 × 322,505.20
  4. Step 4: Simplify right side
    483,709.08x = 215,338,192,663.71
  5. Step 5: Solve for x
    x = 215,338,192,663.71/483,709.08
  6. Step 6: Final answer
    x = 445,181.21

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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.