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Finding the Fourth Proportional to 398,063.68, 549,284.40 and 236,896.36

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Solution

The fourth proportional to 398,063.68, 549,284.40 and 236,896.36 is: 326,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,063.68 : 549,284.40 = 236,896.36 : x
  2. Step 2: Convert to fraction form
    398,063.68/549,284.40 = 236,896.36/x
  3. Step 3: Cross multiply
    398,063.68x = 549,284.40 × 236,896.36
  4. Step 4: Simplify right side
    398,063.68x = 130,123,474,964.78
  5. Step 5: Solve for x
    x = 130,123,474,964.78/398,063.68
  6. Step 6: Final answer
    x = 326,891.10

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