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Finding the Fourth Proportional to 456,646.39, 684,955.46 and 216,932.85

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Solution

The fourth proportional to 456,646.39, 684,955.46 and 216,932.85 is: 325,392.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,646.39 : 684,955.46 = 216,932.85 : x
  2. Step 2: Convert to fraction form
    456,646.39/684,955.46 = 216,932.85/x
  3. Step 3: Cross multiply
    456,646.39x = 684,955.46 × 216,932.85
  4. Step 4: Simplify right side
    456,646.39x = 148,589,340,603.19
  5. Step 5: Solve for x
    x = 148,589,340,603.19/456,646.39
  6. Step 6: Final answer
    x = 325,392.57

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