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Finding the Fourth Proportional to 328,940.62, 453,941.89 and 192,976.90

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Solution

The fourth proportional to 328,940.62, 453,941.89 and 192,976.90 is: 266,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,940.62 : 453,941.89 = 192,976.90 : x
  2. Step 2: Convert to fraction form
    328,940.62/453,941.89 = 192,976.90/x
  3. Step 3: Cross multiply
    328,940.62x = 453,941.89 × 192,976.90
  4. Step 4: Simplify right side
    328,940.62x = 87,600,297,095.04
  5. Step 5: Solve for x
    x = 87,600,297,095.04/328,940.62
  6. Step 6: Final answer
    x = 266,310.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.