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Finding the Fourth Proportional to 498,760.44, 688,118.76 and 283,846.92

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Solution

The fourth proportional to 498,760.44, 688,118.76 and 283,846.92 is: 391,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,760.44 : 688,118.76 = 283,846.92 : x
  2. Step 2: Convert to fraction form
    498,760.44/688,118.76 = 283,846.92/x
  3. Step 3: Cross multiply
    498,760.44x = 688,118.76 × 283,846.92
  4. Step 4: Simplify right side
    498,760.44x = 195,320,390,620.22
  5. Step 5: Solve for x
    x = 195,320,390,620.22/498,760.44
  6. Step 6: Final answer
    x = 391,611.63

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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.