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Finding the Fourth Proportional to 289,591.20, 433,609.20 and 226,864.80

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Solution

The fourth proportional to 289,591.20, 433,609.20 and 226,864.80 is: 339,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,591.20 : 433,609.20 = 226,864.80 : x
  2. Step 2: Convert to fraction form
    289,591.20/433,609.20 = 226,864.80/x
  3. Step 3: Cross multiply
    289,591.20x = 433,609.20 × 226,864.80
  4. Step 4: Simplify right side
    289,591.20x = 98,370,664,436.16
  5. Step 5: Solve for x
    x = 98,370,664,436.16/289,591.20
  6. Step 6: Final answer
    x = 339,688.03

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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.