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Finding the Fourth Proportional to 404,751.42, 558,037.62 and 331,885.80

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Solution

The fourth proportional to 404,751.42, 558,037.62 and 331,885.80 is: 457,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,751.42 : 558,037.62 = 331,885.80 : x
  2. Step 2: Convert to fraction form
    404,751.42/558,037.62 = 331,885.80/x
  3. Step 3: Cross multiply
    404,751.42x = 558,037.62 × 331,885.80
  4. Step 4: Simplify right side
    404,751.42x = 185,204,761,943.80
  5. Step 5: Solve for x
    x = 185,204,761,943.80/404,751.42
  6. Step 6: Final answer
    x = 457,576.56

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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.