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Finding the Fourth Proportional to 456,192.72, 684,400.32 and 321,519.24

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Solution

The fourth proportional to 456,192.72, 684,400.32 and 321,519.24 is: 482,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,192.72 : 684,400.32 = 321,519.24 : x
  2. Step 2: Convert to fraction form
    456,192.72/684,400.32 = 321,519.24/x
  3. Step 3: Cross multiply
    456,192.72x = 684,400.32 × 321,519.24
  4. Step 4: Simplify right side
    456,192.72x = 220,047,870,742.16
  5. Step 5: Solve for x
    x = 220,047,870,742.16/456,192.72
  6. Step 6: Final answer
    x = 482,357.26

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