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Finding the Fourth Proportional to 218,765.94, 329,330.86 and 196,769.62

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Solution

The fourth proportional to 218,765.94, 329,330.86 and 196,769.62 is: 296,217.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,765.94 : 329,330.86 = 196,769.62 : x
  2. Step 2: Convert to fraction form
    218,765.94/329,330.86 = 196,769.62/x
  3. Step 3: Cross multiply
    218,765.94x = 329,330.86 × 196,769.62
  4. Step 4: Simplify right side
    218,765.94x = 64,802,308,176.47
  5. Step 5: Solve for x
    x = 64,802,308,176.47/218,765.94
  6. Step 6: Final answer
    x = 296,217.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.