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Finding the Fourth Proportional to 483,627.44, 667,352.76 and 279,647.48

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Solution

The fourth proportional to 483,627.44, 667,352.76 and 279,647.48 is: 385,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,627.44 : 667,352.76 = 279,647.48 : x
  2. Step 2: Convert to fraction form
    483,627.44/667,352.76 = 279,647.48/x
  3. Step 3: Cross multiply
    483,627.44x = 667,352.76 × 279,647.48
  4. Step 4: Simplify right side
    483,627.44x = 186,623,514,268.28
  5. Step 5: Solve for x
    x = 186,623,514,268.28/483,627.44
  6. Step 6: Final answer
    x = 385,882.81

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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.