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Finding the Fourth Proportional to 479,372.57, 661,533.37 and 264,512.47

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Solution

The fourth proportional to 479,372.57, 661,533.37 and 264,512.47 is: 365,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,372.57 : 661,533.37 = 264,512.47 : x
  2. Step 2: Convert to fraction form
    479,372.57/661,533.37 = 264,512.47/x
  3. Step 3: Cross multiply
    479,372.57x = 661,533.37 × 264,512.47
  4. Step 4: Simplify right side
    479,372.57x = 174,983,825,686.12
  5. Step 5: Solve for x
    x = 174,983,825,686.12/479,372.57
  6. Step 6: Final answer
    x = 365,026.78

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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.