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Finding the Fourth Proportional to 330,018.44, 455,425.90 and 179,115.44

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Solution

The fourth proportional to 330,018.44, 455,425.90 and 179,115.44 is: 247,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,018.44 : 455,425.90 = 179,115.44 : x
  2. Step 2: Convert to fraction form
    330,018.44/455,425.90 = 179,115.44/x
  3. Step 3: Cross multiply
    330,018.44x = 455,425.90 × 179,115.44
  4. Step 4: Simplify right side
    330,018.44x = 81,573,810,465.90
  5. Step 5: Solve for x
    x = 81,573,810,465.90/330,018.44
  6. Step 6: Final answer
    x = 247,179.55

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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.