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Finding the Fourth Proportional to 363,897.70, 545,846.55 and 269,419.30

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Solution

The fourth proportional to 363,897.70, 545,846.55 and 269,419.30 is: 404,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,897.70 : 545,846.55 = 269,419.30 : x
  2. Step 2: Convert to fraction form
    363,897.70/545,846.55 = 269,419.30/x
  3. Step 3: Cross multiply
    363,897.70x = 545,846.55 × 269,419.30
  4. Step 4: Simplify right side
    363,897.70x = 147,061,595,408.42
  5. Step 5: Solve for x
    x = 147,061,595,408.42/363,897.70
  6. Step 6: Final answer
    x = 404,128.95

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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.