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Finding the Fourth Proportional to 404,472.37, 558,373.96 and 251,559.86

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Solution

The fourth proportional to 404,472.37, 558,373.96 and 251,559.86 is: 347,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,472.37 : 558,373.96 = 251,559.86 : x
  2. Step 2: Convert to fraction form
    404,472.37/558,373.96 = 251,559.86/x
  3. Step 3: Cross multiply
    404,472.37x = 558,373.96 × 251,559.86
  4. Step 4: Simplify right side
    404,472.37x = 140,464,475,205.25
  5. Step 5: Solve for x
    x = 140,464,475,205.25/404,472.37
  6. Step 6: Final answer
    x = 347,278.30

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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.