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Finding the Fourth Proportional to 619,257.60, 928,667.70 and 219,911.40

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Solution

The fourth proportional to 619,257.60, 928,667.70 and 219,911.40 is: 329,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,257.60 : 928,667.70 = 219,911.40 : x
  2. Step 2: Convert to fraction form
    619,257.60/928,667.70 = 219,911.40/x
  3. Step 3: Cross multiply
    619,257.60x = 928,667.70 × 219,911.40
  4. Step 4: Simplify right side
    619,257.60x = 204,224,614,041.78
  5. Step 5: Solve for x
    x = 204,224,614,041.78/619,257.60
  6. Step 6: Final answer
    x = 329,789.44

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