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Finding the Fourth Proportional to 358,234.56, 494,363.66 and 197,086.15

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Solution

The fourth proportional to 358,234.56, 494,363.66 and 197,086.15 is: 271,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,234.56 : 494,363.66 = 197,086.15 : x
  2. Step 2: Convert to fraction form
    358,234.56/494,363.66 = 197,086.15/x
  3. Step 3: Cross multiply
    358,234.56x = 494,363.66 × 197,086.15
  4. Step 4: Simplify right side
    358,234.56x = 97,432,229,706.12
  5. Step 5: Solve for x
    x = 97,432,229,706.12/358,234.56
  6. Step 6: Final answer
    x = 271,978.87

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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.