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Finding the Fourth Proportional to 264,991.80, 396,569.14 and 253,969.32

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Solution

The fourth proportional to 264,991.80, 396,569.14 and 253,969.32 is: 380,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,991.80 : 396,569.14 = 253,969.32 : x
  2. Step 2: Convert to fraction form
    264,991.80/396,569.14 = 253,969.32/x
  3. Step 3: Cross multiply
    264,991.80x = 396,569.14 × 253,969.32
  4. Step 4: Simplify right side
    264,991.80x = 100,716,394,818.79
  5. Step 5: Solve for x
    x = 100,716,394,818.79/264,991.80
  6. Step 6: Final answer
    x = 380,073.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.