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Finding the Fourth Proportional to 479,259.82, 661,380.77 and 264,399.80

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Solution

The fourth proportional to 479,259.82, 661,380.77 and 264,399.80 is: 364,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,259.82 : 661,380.77 = 264,399.80 : x
  2. Step 2: Convert to fraction form
    479,259.82/661,380.77 = 264,399.80/x
  3. Step 3: Cross multiply
    479,259.82x = 661,380.77 × 264,399.80
  4. Step 4: Simplify right side
    479,259.82x = 174,868,941,989.85
  5. Step 5: Solve for x
    x = 174,868,941,989.85/479,259.82
  6. Step 6: Final answer
    x = 364,872.95

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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.