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Finding the Fourth Proportional to 299,790.68, 413,753.34 and 190,860.22

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Solution

The fourth proportional to 299,790.68, 413,753.34 and 190,860.22 is: 263,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,790.68 : 413,753.34 = 190,860.22 : x
  2. Step 2: Convert to fraction form
    299,790.68/413,753.34 = 190,860.22/x
  3. Step 3: Cross multiply
    299,790.68x = 413,753.34 × 190,860.22
  4. Step 4: Simplify right side
    299,790.68x = 78,969,053,657.46
  5. Step 5: Solve for x
    x = 78,969,053,657.46/299,790.68
  6. Step 6: Final answer
    x = 263,413.97

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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.