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Finding the Fourth Proportional to 484,310.57, 726,629.34 and 214,401.48

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Solution

The fourth proportional to 484,310.57, 726,629.34 and 214,401.48 is: 321,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,310.57 : 726,629.34 = 214,401.48 : x
  2. Step 2: Convert to fraction form
    484,310.57/726,629.34 = 214,401.48/x
  3. Step 3: Cross multiply
    484,310.57x = 726,629.34 × 214,401.48
  4. Step 4: Simplify right side
    484,310.57x = 155,790,405,907.42
  5. Step 5: Solve for x
    x = 155,790,405,907.42/484,310.57
  6. Step 6: Final answer
    x = 321,674.60

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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.