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Finding the Fourth Proportional to 457,291.65, 686,715.08 and 339,096.45

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Solution

The fourth proportional to 457,291.65, 686,715.08 and 339,096.45 is: 509,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,291.65 : 686,715.08 = 339,096.45 : x
  2. Step 2: Convert to fraction form
    457,291.65/686,715.08 = 339,096.45/x
  3. Step 3: Cross multiply
    457,291.65x = 686,715.08 × 339,096.45
  4. Step 4: Simplify right side
    457,291.65x = 232,862,644,093.98
  5. Step 5: Solve for x
    x = 232,862,644,093.98/457,291.65
  6. Step 6: Final answer
    x = 509,221.29

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