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Finding the Fourth Proportional to 347,552.25, 479,629.40 and 196,649.25

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Solution

The fourth proportional to 347,552.25, 479,629.40 and 196,649.25 is: 271,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,552.25 : 479,629.40 = 196,649.25 : x
  2. Step 2: Convert to fraction form
    347,552.25/479,629.40 = 196,649.25/x
  3. Step 3: Cross multiply
    347,552.25x = 479,629.40 × 196,649.25
  4. Step 4: Simplify right side
    347,552.25x = 94,318,760,804.70
  5. Step 5: Solve for x
    x = 94,318,760,804.70/347,552.25
  6. Step 6: Final answer
    x = 271,380.09

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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.