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Finding the Fourth Proportional to 330,373.96, 455,982.42 and 196,212.04

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Solution

The fourth proportional to 330,373.96, 455,982.42 and 196,212.04 is: 270,812.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,373.96 : 455,982.42 = 196,212.04 : x
  2. Step 2: Convert to fraction form
    330,373.96/455,982.42 = 196,212.04/x
  3. Step 3: Cross multiply
    330,373.96x = 455,982.42 × 196,212.04
  4. Step 4: Simplify right side
    330,373.96x = 89,469,240,832.34
  5. Step 5: Solve for x
    x = 89,469,240,832.34/330,373.96
  6. Step 6: Final answer
    x = 270,812.02

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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.