Home / 293,158.80-439,738.20-198,680.40

Finding the Fourth Proportional to 293,158.80, 439,738.20 and 198,680.40

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Solution

The fourth proportional to 293,158.80, 439,738.20 and 198,680.40 is: 298,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,158.80 : 439,738.20 = 198,680.40 : x
  2. Step 2: Convert to fraction form
    293,158.80/439,738.20 = 198,680.40/x
  3. Step 3: Cross multiply
    293,158.80x = 439,738.20 × 198,680.40
  4. Step 4: Simplify right side
    293,158.80x = 87,367,361,471.28
  5. Step 5: Solve for x
    x = 87,367,361,471.28/293,158.80
  6. Step 6: Final answer
    x = 298,020.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.