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Finding the Fourth Proportional to 355,722.40, 533,410.80 and 197,783.20

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Solution

The fourth proportional to 355,722.40, 533,410.80 and 197,783.20 is: 296,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,722.40 : 533,410.80 = 197,783.20 : x
  2. Step 2: Convert to fraction form
    355,722.40/533,410.80 = 197,783.20/x
  3. Step 3: Cross multiply
    355,722.40x = 533,410.80 × 197,783.20
  4. Step 4: Simplify right side
    355,722.40x = 105,499,694,938.56
  5. Step 5: Solve for x
    x = 105,499,694,938.56/355,722.40
  6. Step 6: Final answer
    x = 296,578.72

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