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Finding the Fourth Proportional to 587,648.21, 881,472.31 and 387,921.89

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Solution

The fourth proportional to 587,648.21, 881,472.31 and 387,921.89 is: 581,882.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,648.21 : 881,472.31 = 387,921.89 : x
  2. Step 2: Convert to fraction form
    587,648.21/881,472.31 = 387,921.89/x
  3. Step 3: Cross multiply
    587,648.21x = 881,472.31 × 387,921.89
  4. Step 4: Simplify right side
    587,648.21x = 341,942,405,711.74
  5. Step 5: Solve for x
    x = 341,942,405,711.74/587,648.21
  6. Step 6: Final answer
    x = 581,882.84

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