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Finding the Fourth Proportional to 603,865.14, 833,519.61 and 389,004.54

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Solution

The fourth proportional to 603,865.14, 833,519.61 and 389,004.54 is: 536,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,865.14 : 833,519.61 = 389,004.54 : x
  2. Step 2: Convert to fraction form
    603,865.14/833,519.61 = 389,004.54/x
  3. Step 3: Cross multiply
    603,865.14x = 833,519.61 × 389,004.54
  4. Step 4: Simplify right side
    603,865.14x = 324,242,912,469.03
  5. Step 5: Solve for x
    x = 324,242,912,469.03/603,865.14
  6. Step 6: Final answer
    x = 536,945.90

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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.