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Finding the Fourth Proportional to 327,235.60, 490,864.13 and 90,558.46

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Solution

The fourth proportional to 327,235.60, 490,864.13 and 90,558.46 is: 135,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,235.60 : 490,864.13 = 90,558.46 : x
  2. Step 2: Convert to fraction form
    327,235.60/490,864.13 = 90,558.46/x
  3. Step 3: Cross multiply
    327,235.60x = 490,864.13 × 90,558.46
  4. Step 4: Simplify right side
    327,235.60x = 44,451,896,774.93
  5. Step 5: Solve for x
    x = 44,451,896,774.93/327,235.60
  6. Step 6: Final answer
    x = 135,840.65

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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.