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Finding the Fourth Proportional to 484,073.87, 668,017.28 and 269,203.55

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Solution

The fourth proportional to 484,073.87, 668,017.28 and 269,203.55 is: 371,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,073.87 : 668,017.28 = 269,203.55 : x
  2. Step 2: Convert to fraction form
    484,073.87/668,017.28 = 269,203.55/x
  3. Step 3: Cross multiply
    484,073.87x = 668,017.28 × 269,203.55
  4. Step 4: Simplify right side
    484,073.87x = 179,832,621,891.33
  5. Step 5: Solve for x
    x = 179,832,621,891.33/484,073.87
  6. Step 6: Final answer
    x = 371,498.30

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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.