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Finding the Fourth Proportional to 441,993.89, 609,791.64 and 289,119.35

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Solution

The fourth proportional to 441,993.89, 609,791.64 and 289,119.35 is: 398,880.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,993.89 : 609,791.64 = 289,119.35 : x
  2. Step 2: Convert to fraction form
    441,993.89/609,791.64 = 289,119.35/x
  3. Step 3: Cross multiply
    441,993.89x = 609,791.64 × 289,119.35
  4. Step 4: Simplify right side
    441,993.89x = 176,302,562,592.23
  5. Step 5: Solve for x
    x = 176,302,562,592.23/441,993.89
  6. Step 6: Final answer
    x = 398,880.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.