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Finding the Fourth Proportional to 552,969.87, 763,222.86 and 361,872.54

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Solution

The fourth proportional to 552,969.87, 763,222.86 and 361,872.54 is: 499,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,969.87 : 763,222.86 = 361,872.54 : x
  2. Step 2: Convert to fraction form
    552,969.87/763,222.86 = 361,872.54/x
  3. Step 3: Cross multiply
    552,969.87x = 763,222.86 × 361,872.54
  4. Step 4: Simplify right side
    552,969.87x = 276,189,394,934.26
  5. Step 5: Solve for x
    x = 276,189,394,934.26/552,969.87
  6. Step 6: Final answer
    x = 499,465.54

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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.