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Finding the Fourth Proportional to 384,730.40, 576,404.40 and 329,434.40

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Solution

The fourth proportional to 384,730.40, 576,404.40 and 329,434.40 is: 493,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,730.40 : 576,404.40 = 329,434.40 : x
  2. Step 2: Convert to fraction form
    384,730.40/576,404.40 = 329,434.40/x
  3. Step 3: Cross multiply
    384,730.40x = 576,404.40 × 329,434.40
  4. Step 4: Simplify right side
    384,730.40x = 189,887,437,671.36
  5. Step 5: Solve for x
    x = 189,887,437,671.36/384,730.40
  6. Step 6: Final answer
    x = 493,559.74

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