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Finding the Fourth Proportional to 329,318.73, 454,460.31 and 178,415.73

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Solution

The fourth proportional to 329,318.73, 454,460.31 and 178,415.73 is: 246,213.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,318.73 : 454,460.31 = 178,415.73 : x
  2. Step 2: Convert to fraction form
    329,318.73/454,460.31 = 178,415.73/x
  3. Step 3: Cross multiply
    329,318.73x = 454,460.31 × 178,415.73
  4. Step 4: Simplify right side
    329,318.73x = 81,082,867,964.68
  5. Step 5: Solve for x
    x = 81,082,867,964.68/329,318.73
  6. Step 6: Final answer
    x = 246,213.96

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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.