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Finding the Fourth Proportional to 329,309.61, 454,447.72 and 178,406.61

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Solution

The fourth proportional to 329,309.61, 454,447.72 and 178,406.61 is: 246,201.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,309.61 : 454,447.72 = 178,406.61 : x
  2. Step 2: Convert to fraction form
    329,309.61/454,447.72 = 178,406.61/x
  3. Step 3: Cross multiply
    329,309.61x = 454,447.72 × 178,406.61
  4. Step 4: Simplify right side
    329,309.61x = 81,076,474,429.17
  5. Step 5: Solve for x
    x = 81,076,474,429.17/329,309.61
  6. Step 6: Final answer
    x = 246,201.37

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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.