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Finding the Fourth Proportional to 327,908.53, 491,436.72 and 147,861.73

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Solution

The fourth proportional to 327,908.53, 491,436.72 and 147,861.73 is: 221,600.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,908.53 : 491,436.72 = 147,861.73 : x
  2. Step 2: Convert to fraction form
    327,908.53/491,436.72 = 147,861.73/x
  3. Step 3: Cross multiply
    327,908.53x = 491,436.72 × 147,861.73
  4. Step 4: Simplify right side
    327,908.53x = 72,664,683,604.73
  5. Step 5: Solve for x
    x = 72,664,683,604.73/327,908.53
  6. Step 6: Final answer
    x = 221,600.47

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1.5x scale

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.