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Finding the Fourth Proportional to 331,084.40, 496,626.60 and 131,452.40

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Solution

The fourth proportional to 331,084.40, 496,626.60 and 131,452.40 is: 197,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,084.40 : 496,626.60 = 131,452.40 : x
  2. Step 2: Convert to fraction form
    331,084.40/496,626.60 = 131,452.40/x
  3. Step 3: Cross multiply
    331,084.40x = 496,626.60 × 131,452.40
  4. Step 4: Simplify right side
    331,084.40x = 65,282,758,473.84
  5. Step 5: Solve for x
    x = 65,282,758,473.84/331,084.40
  6. Step 6: Final answer
    x = 197,178.60

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1.5x scale

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.