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Finding the Fourth Proportional to 331,622.70, 496,656.45 and 225,869.10

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Solution

The fourth proportional to 331,622.70, 496,656.45 and 225,869.10 is: 338,274.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,622.70 : 496,656.45 = 225,869.10 : x
  2. Step 2: Convert to fraction form
    331,622.70/496,656.45 = 225,869.10/x
  3. Step 3: Cross multiply
    331,622.70x = 496,656.45 × 225,869.10
  4. Step 4: Simplify right side
    331,622.70x = 112,179,345,370.70
  5. Step 5: Solve for x
    x = 112,179,345,370.70/331,622.70
  6. Step 6: Final answer
    x = 338,274.02

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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.