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Finding the Fourth Proportional to 509,907.08, 764,751.26 and 210,309.96

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Solution

The fourth proportional to 509,907.08, 764,751.26 and 210,309.96 is: 315,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,907.08 : 764,751.26 = 210,309.96 : x
  2. Step 2: Convert to fraction form
    509,907.08/764,751.26 = 210,309.96/x
  3. Step 3: Cross multiply
    509,907.08x = 764,751.26 × 210,309.96
  4. Step 4: Simplify right side
    509,907.08x = 160,834,806,900.55
  5. Step 5: Solve for x
    x = 160,834,806,900.55/509,907.08
  6. Step 6: Final answer
    x = 315,419.83

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