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Finding the Fourth Proportional to 331,279.70, 496,919.55 and 295,337.30

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Solution

The fourth proportional to 331,279.70, 496,919.55 and 295,337.30 is: 443,005.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,279.70 : 496,919.55 = 295,337.30 : x
  2. Step 2: Convert to fraction form
    331,279.70/496,919.55 = 295,337.30/x
  3. Step 3: Cross multiply
    331,279.70x = 496,919.55 × 295,337.30
  4. Step 4: Simplify right side
    331,279.70x = 146,758,878,214.22
  5. Step 5: Solve for x
    x = 146,758,878,214.22/331,279.70
  6. Step 6: Final answer
    x = 443,005.95

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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.