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Finding the Fourth Proportional to 493,345.45, 680,816.71 and 266,990.95

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Solution

The fourth proportional to 493,345.45, 680,816.71 and 266,990.95 is: 368,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,345.45 : 680,816.71 = 266,990.95 : x
  2. Step 2: Convert to fraction form
    493,345.45/680,816.71 = 266,990.95/x
  3. Step 3: Cross multiply
    493,345.45x = 680,816.71 × 266,990.95
  4. Step 4: Simplify right side
    493,345.45x = 181,771,900,178.78
  5. Step 5: Solve for x
    x = 181,771,900,178.78/493,345.45
  6. Step 6: Final answer
    x = 368,447.51

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