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Finding the Fourth Proportional to 619,858.11, 855,345.12 and 347,863.65

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Solution

The fourth proportional to 619,858.11, 855,345.12 and 347,863.65 is: 480,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,858.11 : 855,345.12 = 347,863.65 : x
  2. Step 2: Convert to fraction form
    619,858.11/855,345.12 = 347,863.65/x
  3. Step 3: Cross multiply
    619,858.11x = 855,345.12 × 347,863.65
  4. Step 4: Simplify right side
    619,858.11x = 297,543,475,452.89
  5. Step 5: Solve for x
    x = 297,543,475,452.89/619,858.11
  6. Step 6: Final answer
    x = 480,018.69

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