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Finding the Fourth Proportional to 483,213.87, 667,168.74 and 302,007.26

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Solution

The fourth proportional to 483,213.87, 667,168.74 and 302,007.26 is: 416,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,213.87 : 667,168.74 = 302,007.26 : x
  2. Step 2: Convert to fraction form
    483,213.87/667,168.74 = 302,007.26/x
  3. Step 3: Cross multiply
    483,213.87x = 667,168.74 × 302,007.26
  4. Step 4: Simplify right side
    483,213.87x = 201,489,799,789.21
  5. Step 5: Solve for x
    x = 201,489,799,789.21/483,213.87
  6. Step 6: Final answer
    x = 416,978.51

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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.