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Finding the Fourth Proportional to 331,626.80, 497,440.20 and 264,704.60

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Solution

The fourth proportional to 331,626.80, 497,440.20 and 264,704.60 is: 397,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,626.80 : 497,440.20 = 264,704.60 : x
  2. Step 2: Convert to fraction form
    331,626.80/497,440.20 = 264,704.60/x
  3. Step 3: Cross multiply
    331,626.80x = 497,440.20 × 264,704.60
  4. Step 4: Simplify right side
    331,626.80x = 131,674,709,164.92
  5. Step 5: Solve for x
    x = 131,674,709,164.92/331,626.80
  6. Step 6: Final answer
    x = 397,056.90

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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.