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Finding the Fourth Proportional to 441,709.59, 609,403.89 and 288,837.21

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Solution

The fourth proportional to 441,709.59, 609,403.89 and 288,837.21 is: 398,493.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,709.59 : 609,403.89 = 288,837.21 : x
  2. Step 2: Convert to fraction form
    441,709.59/609,403.89 = 288,837.21/x
  3. Step 3: Cross multiply
    441,709.59x = 609,403.89 × 288,837.21
  4. Step 4: Simplify right side
    441,709.59x = 176,018,519,350.75
  5. Step 5: Solve for x
    x = 176,018,519,350.75/441,709.59
  6. Step 6: Final answer
    x = 398,493.77

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