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Finding the Fourth Proportional to 358,523.70, 494,754.92 and 197,372.58

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Solution

The fourth proportional to 358,523.70, 494,754.92 and 197,372.58 is: 272,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,523.70 : 494,754.92 = 197,372.58 : x
  2. Step 2: Convert to fraction form
    358,523.70/494,754.92 = 197,372.58/x
  3. Step 3: Cross multiply
    358,523.70x = 494,754.92 × 197,372.58
  4. Step 4: Simplify right side
    358,523.70x = 97,651,055,028.09
  5. Step 5: Solve for x
    x = 97,651,055,028.09/358,523.70
  6. Step 6: Final answer
    x = 272,369.87

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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.