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Finding the Fourth Proportional to 329,940.75, 455,319.45 and 179,037.75

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Solution

The fourth proportional to 329,940.75, 455,319.45 and 179,037.75 is: 247,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,940.75 : 455,319.45 = 179,037.75 : x
  2. Step 2: Convert to fraction form
    329,940.75/455,319.45 = 179,037.75/x
  3. Step 3: Cross multiply
    329,940.75x = 455,319.45 × 179,037.75
  4. Step 4: Simplify right side
    329,940.75x = 81,519,369,859.24
  5. Step 5: Solve for x
    x = 81,519,369,859.24/329,940.75
  6. Step 6: Final answer
    x = 247,072.75

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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.