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Finding the Fourth Proportional to 393,833.55, 589,972.73 and 235,591.95

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Solution

The fourth proportional to 393,833.55, 589,972.73 and 235,591.95 is: 352,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,833.55 : 589,972.73 = 235,591.95 : x
  2. Step 2: Convert to fraction form
    393,833.55/589,972.73 = 235,591.95/x
  3. Step 3: Cross multiply
    393,833.55x = 589,972.73 × 235,591.95
  4. Step 4: Simplify right side
    393,833.55x = 138,992,824,729.56
  5. Step 5: Solve for x
    x = 138,992,824,729.56/393,833.55
  6. Step 6: Final answer
    x = 352,922.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.