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Finding the Fourth Proportional to 398,831.63, 598,118.04 and 132,520.64

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Solution

The fourth proportional to 398,831.63, 598,118.04 and 132,520.64 is: 198,737.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,831.63 : 598,118.04 = 132,520.64 : x
  2. Step 2: Convert to fraction form
    398,831.63/598,118.04 = 132,520.64/x
  3. Step 3: Cross multiply
    398,831.63x = 598,118.04 × 132,520.64
  4. Step 4: Simplify right side
    398,831.63x = 79,262,982,465.76
  5. Step 5: Solve for x
    x = 79,262,982,465.76/398,831.63
  6. Step 6: Final answer
    x = 198,737.96

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