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Finding the Fourth Proportional to 453,190.65, 679,202.78 and 347,485.65

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Solution

The fourth proportional to 453,190.65, 679,202.78 and 347,485.65 is: 520,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,190.65 : 679,202.78 = 347,485.65 : x
  2. Step 2: Convert to fraction form
    453,190.65/679,202.78 = 347,485.65/x
  3. Step 3: Cross multiply
    453,190.65x = 679,202.78 × 347,485.65
  4. Step 4: Simplify right side
    453,190.65x = 236,013,217,752.68
  5. Step 5: Solve for x
    x = 236,013,217,752.68/453,190.65
  6. Step 6: Final answer
    x = 520,781.30

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