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Finding the Fourth Proportional to 515,872.20, 773,808.30 and 453,664.20

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Solution

The fourth proportional to 515,872.20, 773,808.30 and 453,664.20 is: 680,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,872.20 : 773,808.30 = 453,664.20 : x
  2. Step 2: Convert to fraction form
    515,872.20/773,808.30 = 453,664.20/x
  3. Step 3: Cross multiply
    515,872.20x = 773,808.30 × 453,664.20
  4. Step 4: Simplify right side
    515,872.20x = 351,049,123,372.86
  5. Step 5: Solve for x
    x = 351,049,123,372.86/515,872.20
  6. Step 6: Final answer
    x = 680,496.30

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