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Finding the Fourth Proportional to 329,939.88, 455,327.14 and 193,948.88

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Solution

The fourth proportional to 329,939.88, 455,327.14 and 193,948.88 is: 267,655.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,939.88 : 455,327.14 = 193,948.88 : x
  2. Step 2: Convert to fraction form
    329,939.88/455,327.14 = 193,948.88/x
  3. Step 3: Cross multiply
    329,939.88x = 455,327.14 × 193,948.88
  4. Step 4: Simplify right side
    329,939.88x = 88,310,188,836.60
  5. Step 5: Solve for x
    x = 88,310,188,836.60/329,939.88
  6. Step 6: Final answer
    x = 267,655.39

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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.