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Finding the Fourth Proportional to 393,910.19, 543,634.85 and 241,017.29

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Solution

The fourth proportional to 393,910.19, 543,634.85 and 241,017.29 is: 332,627.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,910.19 : 543,634.85 = 241,017.29 : x
  2. Step 2: Convert to fraction form
    393,910.19/543,634.85 = 241,017.29/x
  3. Step 3: Cross multiply
    393,910.19x = 543,634.85 × 241,017.29
  4. Step 4: Simplify right side
    393,910.19x = 131,025,397,091.47
  5. Step 5: Solve for x
    x = 131,025,397,091.47/393,910.19
  6. Step 6: Final answer
    x = 332,627.59

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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.