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Finding the Fourth Proportional to 483,630.96, 667,357.58 and 279,650.96

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Solution

The fourth proportional to 483,630.96, 667,357.58 and 279,650.96 is: 385,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,630.96 : 667,357.58 = 279,650.96 : x
  2. Step 2: Convert to fraction form
    483,630.96/667,357.58 = 279,650.96/x
  3. Step 3: Cross multiply
    483,630.96x = 667,357.58 × 279,650.96
  4. Step 4: Simplify right side
    483,630.96x = 186,627,187,910.28
  5. Step 5: Solve for x
    x = 186,627,187,910.28/483,630.96
  6. Step 6: Final answer
    x = 385,887.59

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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.