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Finding the Fourth Proportional to 479,171.92, 661,294.38 and 264,330.76

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Solution

The fourth proportional to 479,171.92, 661,294.38 and 264,330.76 is: 364,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,171.92 : 661,294.38 = 264,330.76 : x
  2. Step 2: Convert to fraction form
    479,171.92/661,294.38 = 264,330.76/x
  3. Step 3: Cross multiply
    479,171.92x = 661,294.38 × 264,330.76
  4. Step 4: Simplify right side
    479,171.92x = 174,800,446,049.13
  5. Step 5: Solve for x
    x = 174,800,446,049.13/479,171.92
  6. Step 6: Final answer
    x = 364,796.93

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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.