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Finding the Fourth Proportional to 481,790.16, 664,861.68 and 266,929.44

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Solution

The fourth proportional to 481,790.16, 664,861.68 and 266,929.44 is: 368,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,790.16 : 664,861.68 = 266,929.44 : x
  2. Step 2: Convert to fraction form
    481,790.16/664,861.68 = 266,929.44/x
  3. Step 3: Cross multiply
    481,790.16x = 664,861.68 × 266,929.44
  4. Step 4: Simplify right side
    481,790.16x = 177,471,155,919.86
  5. Step 5: Solve for x
    x = 177,471,155,919.86/481,790.16
  6. Step 6: Final answer
    x = 368,357.78

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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.