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Finding the Fourth Proportional to 327,227.12, 490,840.44 and 105,611.12

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Solution

The fourth proportional to 327,227.12, 490,840.44 and 105,611.12 is: 158,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,227.12 : 490,840.44 = 105,611.12 : x
  2. Step 2: Convert to fraction form
    327,227.12/490,840.44 = 105,611.12/x
  3. Step 3: Cross multiply
    327,227.12x = 490,840.44 × 105,611.12
  4. Step 4: Simplify right side
    327,227.12x = 51,838,208,609.69
  5. Step 5: Solve for x
    x = 51,838,208,609.69/327,227.12
  6. Step 6: Final answer
    x = 158,416.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.