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Finding the Fourth Proportional to 324,261.20, 485,614.20 and 262,053.20

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Solution

The fourth proportional to 324,261.20, 485,614.20 and 262,053.20 is: 392,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,261.20 : 485,614.20 = 262,053.20 : x
  2. Step 2: Convert to fraction form
    324,261.20/485,614.20 = 262,053.20/x
  3. Step 3: Cross multiply
    324,261.20x = 485,614.20 × 262,053.20
  4. Step 4: Simplify right side
    324,261.20x = 127,256,755,075.44
  5. Step 5: Solve for x
    x = 127,256,755,075.44/324,261.20
  6. Step 6: Final answer
    x = 392,451.38

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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.