Home / 288,974.60-398,766.42-161,628.20

Finding the Fourth Proportional to 288,974.60, 398,766.42 and 161,628.20

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Solution

The fourth proportional to 288,974.60, 398,766.42 and 161,628.20 is: 223,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,974.60 : 398,766.42 = 161,628.20 : x
  2. Step 2: Convert to fraction form
    288,974.60/398,766.42 = 161,628.20/x
  3. Step 3: Cross multiply
    288,974.60x = 398,766.42 × 161,628.20
  4. Step 4: Simplify right side
    288,974.60x = 64,451,898,685.04
  5. Step 5: Solve for x
    x = 64,451,898,685.04/288,974.60
  6. Step 6: Final answer
    x = 223,036.55

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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.