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Finding the Fourth Proportional to 576,129.11, 794,939.48 and 331,066.53

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Solution

The fourth proportional to 576,129.11, 794,939.48 and 331,066.53 is: 456,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,129.11 : 794,939.48 = 331,066.53 : x
  2. Step 2: Convert to fraction form
    576,129.11/794,939.48 = 331,066.53/x
  3. Step 3: Cross multiply
    576,129.11x = 794,939.48 × 331,066.53
  4. Step 4: Simplify right side
    576,129.11x = 263,177,853,548.27
  5. Step 5: Solve for x
    x = 263,177,853,548.27/576,129.11
  6. Step 6: Final answer
    x = 456,803.61

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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.