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Finding the Fourth Proportional to 339,910.92, 469,040.27 and 196,644.20

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Solution

The fourth proportional to 339,910.92, 469,040.27 and 196,644.20 is: 271,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,910.92 : 469,040.27 = 196,644.20 : x
  2. Step 2: Convert to fraction form
    339,910.92/469,040.27 = 196,644.20/x
  3. Step 3: Cross multiply
    339,910.92x = 469,040.27 × 196,644.20
  4. Step 4: Simplify right side
    339,910.92x = 92,234,045,333.51
  5. Step 5: Solve for x
    x = 92,234,045,333.51/339,910.92
  6. Step 6: Final answer
    x = 271,347.70

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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.