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Finding the Fourth Proportional to 289,773.80, 434,660.70 and 195,770.60

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Solution

The fourth proportional to 289,773.80, 434,660.70 and 195,770.60 is: 293,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,773.80 : 434,660.70 = 195,770.60 : x
  2. Step 2: Convert to fraction form
    289,773.80/434,660.70 = 195,770.60/x
  3. Step 3: Cross multiply
    289,773.80x = 434,660.70 × 195,770.60
  4. Step 4: Simplify right side
    289,773.80x = 85,093,786,035.42
  5. Step 5: Solve for x
    x = 85,093,786,035.42/289,773.80
  6. Step 6: Final answer
    x = 293,655.90

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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.