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Finding the Fourth Proportional to 329,493.32, 494,239.97 and 80,175.32

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Solution

The fourth proportional to 329,493.32, 494,239.97 and 80,175.32 is: 120,262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,493.32 : 494,239.97 = 80,175.32 : x
  2. Step 2: Convert to fraction form
    329,493.32/494,239.97 = 80,175.32/x
  3. Step 3: Cross multiply
    329,493.32x = 494,239.97 × 80,175.32
  4. Step 4: Simplify right side
    329,493.32x = 39,625,845,280.34
  5. Step 5: Solve for x
    x = 39,625,845,280.34/329,493.32
  6. Step 6: Final answer
    x = 120,262.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.