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Finding the Fourth Proportional to 329,321.86, 454,464.62 and 178,418.86

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Solution

The fourth proportional to 329,321.86, 454,464.62 and 178,418.86 is: 246,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,321.86 : 454,464.62 = 178,418.86 : x
  2. Step 2: Convert to fraction form
    329,321.86/454,464.62 = 178,418.86/x
  3. Step 3: Cross multiply
    329,321.86x = 454,464.62 × 178,418.86
  4. Step 4: Simplify right side
    329,321.86x = 81,085,059,410.73
  5. Step 5: Solve for x
    x = 81,085,059,410.73/329,321.86
  6. Step 6: Final answer
    x = 246,218.27

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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.