Home / 393,601.28-543,162.96-223,831.52

Finding the Fourth Proportional to 393,601.28, 543,162.96 and 223,831.52

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Solution

The fourth proportional to 393,601.28, 543,162.96 and 223,831.52 is: 308,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,601.28 : 543,162.96 = 223,831.52 : x
  2. Step 2: Convert to fraction form
    393,601.28/543,162.96 = 223,831.52/x
  3. Step 3: Cross multiply
    393,601.28x = 543,162.96 × 223,831.52
  4. Step 4: Simplify right side
    393,601.28x = 121,576,990,944.50
  5. Step 5: Solve for x
    x = 121,576,990,944.50/393,601.28
  6. Step 6: Final answer
    x = 308,883.63

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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.