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Finding the Fourth Proportional to 436,697.28, 653,689.92 and 236,520.48

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Solution

The fourth proportional to 436,697.28, 653,689.92 and 236,520.48 is: 354,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,697.28 : 653,689.92 = 236,520.48 : x
  2. Step 2: Convert to fraction form
    436,697.28/653,689.92 = 236,520.48/x
  3. Step 3: Cross multiply
    436,697.28x = 653,689.92 × 236,520.48
  4. Step 4: Simplify right side
    436,697.28x = 154,611,053,649.56
  5. Step 5: Solve for x
    x = 154,611,053,649.56/436,697.28
  6. Step 6: Final answer
    x = 354,046.29

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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.