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Finding the Fourth Proportional to 354,609.60, 531,428.40 and 227,860.80

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Solution

The fourth proportional to 354,609.60, 531,428.40 and 227,860.80 is: 341,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,609.60 : 531,428.40 = 227,860.80 : x
  2. Step 2: Convert to fraction form
    354,609.60/531,428.40 = 227,860.80/x
  3. Step 3: Cross multiply
    354,609.60x = 531,428.40 × 227,860.80
  4. Step 4: Simplify right side
    354,609.60x = 121,091,700,366.72
  5. Step 5: Solve for x
    x = 121,091,700,366.72/354,609.60
  6. Step 6: Final answer
    x = 341,478.91

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