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Finding the Fourth Proportional to 329,309.73, 454,447.89 and 178,406.73

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Solution

The fourth proportional to 329,309.73, 454,447.89 and 178,406.73 is: 246,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,309.73 : 454,447.89 = 178,406.73 : x
  2. Step 2: Convert to fraction form
    329,309.73/454,447.89 = 178,406.73/x
  3. Step 3: Cross multiply
    329,309.73x = 454,447.89 × 178,406.73
  4. Step 4: Simplify right side
    329,309.73x = 81,076,562,010.30
  5. Step 5: Solve for x
    x = 81,076,562,010.30/329,309.73
  6. Step 6: Final answer
    x = 246,201.54

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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.