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Finding the Fourth Proportional to 358,471.33, 494,690.31 and 197,325.56

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Solution

The fourth proportional to 358,471.33, 494,690.31 and 197,325.56 is: 272,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,471.33 : 494,690.31 = 197,325.56 : x
  2. Step 2: Convert to fraction form
    358,471.33/494,690.31 = 197,325.56/x
  3. Step 3: Cross multiply
    358,471.33x = 494,690.31 × 197,325.56
  4. Step 4: Simplify right side
    358,471.33x = 97,615,043,684.05
  5. Step 5: Solve for x
    x = 97,615,043,684.05/358,471.33
  6. Step 6: Final answer
    x = 272,309.21

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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.