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Finding the Fourth Proportional to 327,706.86, 491,586.98 and 91,049.57

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Solution

The fourth proportional to 327,706.86, 491,586.98 and 91,049.57 is: 136,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,706.86 : 491,586.98 = 91,049.57 : x
  2. Step 2: Convert to fraction form
    327,706.86/491,586.98 = 91,049.57/x
  3. Step 3: Cross multiply
    327,706.86x = 491,586.98 × 91,049.57
  4. Step 4: Simplify right side
    327,706.86x = 44,758,782,076.87
  5. Step 5: Solve for x
    x = 44,758,782,076.87/327,706.86
  6. Step 6: Final answer
    x = 136,581.77

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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.