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Finding the Fourth Proportional to 484,467.49, 667,872.25 and 340,781.59

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Solution

The fourth proportional to 484,467.49, 667,872.25 and 340,781.59 is: 469,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,467.49 : 667,872.25 = 340,781.59 : x
  2. Step 2: Convert to fraction form
    484,467.49/667,872.25 = 340,781.59/x
  3. Step 3: Cross multiply
    484,467.49x = 667,872.25 × 340,781.59
  4. Step 4: Simplify right side
    484,467.49x = 227,598,567,271.88
  5. Step 5: Solve for x
    x = 227,598,567,271.88/484,467.49
  6. Step 6: Final answer
    x = 469,791.21

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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.