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Finding the Fourth Proportional to 363,914.70, 545,872.05 and 269,436.30

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Solution

The fourth proportional to 363,914.70, 545,872.05 and 269,436.30 is: 404,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,914.70 : 545,872.05 = 269,436.30 : x
  2. Step 2: Convert to fraction form
    363,914.70/545,872.05 = 269,436.30/x
  3. Step 3: Cross multiply
    363,914.70x = 545,872.05 × 269,436.30
  4. Step 4: Simplify right side
    363,914.70x = 147,077,745,425.42
  5. Step 5: Solve for x
    x = 147,077,745,425.42/363,914.70
  6. Step 6: Final answer
    x = 404,154.45

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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.