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Finding the Fourth Proportional to 494,786.02, 682,806 and 268,431.52

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Solution

The fourth proportional to 494,786.02, 682,806 and 268,431.52 is: 370,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,786.02 : 682,806 = 268,431.52 : x
  2. Step 2: Convert to fraction form
    494,786.02/682,806 = 268,431.52/x
  3. Step 3: Cross multiply
    494,786.02x = 682,806 × 268,431.52
  4. Step 4: Simplify right side
    494,786.02x = 183,286,652,445.12
  5. Step 5: Solve for x
    x = 183,286,652,445.12/494,786.02
  6. Step 6: Final answer
    x = 370,436.20

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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.