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Finding the Fourth Proportional to 870,809.01, 1,305,696.12 and 331,104.76

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Solution

The fourth proportional to 870,809.01, 1,305,696.12 and 331,104.76 is: 496,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,809.01 : 1,305,696.12 = 331,104.76 : x
  2. Step 2: Convert to fraction form
    870,809.01/1,305,696.12 = 331,104.76/x
  3. Step 3: Cross multiply
    870,809.01x = 1,305,696.12 × 331,104.76
  4. Step 4: Simplify right side
    870,809.01x = 432,322,205,146.65
  5. Step 5: Solve for x
    x = 432,322,205,146.65/870,809.01
  6. Step 6: Final answer
    x = 496,460.42

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