Home / 327,715.68-491,072.76-220,703.94

Finding the Fourth Proportional to 327,715.68, 491,072.76 and 220,703.94

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Solution

The fourth proportional to 327,715.68, 491,072.76 and 220,703.94 is: 330,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,715.68 : 491,072.76 = 220,703.94 : x
  2. Step 2: Convert to fraction form
    327,715.68/491,072.76 = 220,703.94/x
  3. Step 3: Cross multiply
    327,715.68x = 491,072.76 × 220,703.94
  4. Step 4: Simplify right side
    327,715.68x = 108,381,692,958.67
  5. Step 5: Solve for x
    x = 108,381,692,958.67/327,715.68
  6. Step 6: Final answer
    x = 330,718.67

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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.