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Finding the Fourth Proportional to 484,556.45, 668,709.92 and 269,710.11

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Solution

The fourth proportional to 484,556.45, 668,709.92 and 269,710.11 is: 372,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,556.45 : 668,709.92 = 269,710.11 : x
  2. Step 2: Convert to fraction form
    484,556.45/668,709.92 = 269,710.11/x
  3. Step 3: Cross multiply
    484,556.45x = 668,709.92 × 269,710.11
  4. Step 4: Simplify right side
    484,556.45x = 180,357,826,755.57
  5. Step 5: Solve for x
    x = 180,357,826,755.57/484,556.45
  6. Step 6: Final answer
    x = 372,212.21

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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.