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Finding the Fourth Proportional to 394,221.16, 544,025.70 and 215,373.16

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Solution

The fourth proportional to 394,221.16, 544,025.70 and 215,373.16 is: 297,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,221.16 : 544,025.70 = 215,373.16 : x
  2. Step 2: Convert to fraction form
    394,221.16/544,025.70 = 215,373.16/x
  3. Step 3: Cross multiply
    394,221.16x = 544,025.70 × 215,373.16
  4. Step 4: Simplify right side
    394,221.16x = 117,168,534,130.21
  5. Step 5: Solve for x
    x = 117,168,534,130.21/394,221.16
  6. Step 6: Final answer
    x = 297,215.23

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