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Finding the Fourth Proportional to 358,144.54, 494,229.11 and 196,999.63

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Solution

The fourth proportional to 358,144.54, 494,229.11 and 196,999.63 is: 271,853.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,144.54 : 494,229.11 = 196,999.63 : x
  2. Step 2: Convert to fraction form
    358,144.54/494,229.11 = 196,999.63/x
  3. Step 3: Cross multiply
    358,144.54x = 494,229.11 × 196,999.63
  4. Step 4: Simplify right side
    358,144.54x = 97,362,949,584.66
  5. Step 5: Solve for x
    x = 97,362,949,584.66/358,144.54
  6. Step 6: Final answer
    x = 271,853.79

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1.5x scale

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.