Home / 327,905.40-491,858.10-325,831.80

Finding the Fourth Proportional to 327,905.40, 491,858.10 and 325,831.80

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Solution

The fourth proportional to 327,905.40, 491,858.10 and 325,831.80 is: 488,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,905.40 : 491,858.10 = 325,831.80 : x
  2. Step 2: Convert to fraction form
    327,905.40/491,858.10 = 325,831.80/x
  3. Step 3: Cross multiply
    327,905.40x = 491,858.10 × 325,831.80
  4. Step 4: Simplify right side
    327,905.40x = 160,263,010,067.58
  5. Step 5: Solve for x
    x = 160,263,010,067.58/327,905.40
  6. Step 6: Final answer
    x = 488,747.70

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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.