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Finding the Fourth Proportional to 481,279.16, 722,628.41 and 268,462.86

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Solution

The fourth proportional to 481,279.16, 722,628.41 and 268,462.86 is: 403,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,279.16 : 722,628.41 = 268,462.86 : x
  2. Step 2: Convert to fraction form
    481,279.16/722,628.41 = 268,462.86/x
  3. Step 3: Cross multiply
    481,279.16x = 722,628.41 × 268,462.86
  4. Step 4: Simplify right side
    481,279.16x = 193,998,888,323.54
  5. Step 5: Solve for x
    x = 193,998,888,323.54/481,279.16
  6. Step 6: Final answer
    x = 403,090.15

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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.