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Finding the Fourth Proportional to 483,378.59, 667,039.83 and 268,531.76

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Solution

The fourth proportional to 483,378.59, 667,039.83 and 268,531.76 is: 370,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,378.59 : 667,039.83 = 268,531.76 : x
  2. Step 2: Convert to fraction form
    483,378.59/667,039.83 = 268,531.76/x
  3. Step 3: Cross multiply
    483,378.59x = 667,039.83 × 268,531.76
  4. Step 4: Simplify right side
    483,378.59x = 179,121,380,200.61
  5. Step 5: Solve for x
    x = 179,121,380,200.61/483,378.59
  6. Step 6: Final answer
    x = 370,561.26

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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.