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Finding the Fourth Proportional to 339,995.86, 469,210.14 and 196,728.18

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Solution

The fourth proportional to 339,995.86, 469,210.14 and 196,728.18 is: 271,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,995.86 : 469,210.14 = 196,728.18 : x
  2. Step 2: Convert to fraction form
    339,995.86/469,210.14 = 196,728.18/x
  3. Step 3: Cross multiply
    339,995.86x = 469,210.14 × 196,728.18
  4. Step 4: Simplify right side
    339,995.86x = 92,306,856,879.75
  5. Step 5: Solve for x
    x = 92,306,856,879.75/339,995.86
  6. Step 6: Final answer
    x = 271,494.06

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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.