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Finding the Fourth Proportional to 348,331.20, 522,496.80 and 237,739.20

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Solution

The fourth proportional to 348,331.20, 522,496.80 and 237,739.20 is: 356,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,331.20 : 522,496.80 = 237,739.20 : x
  2. Step 2: Convert to fraction form
    348,331.20/522,496.80 = 237,739.20/x
  3. Step 3: Cross multiply
    348,331.20x = 522,496.80 × 237,739.20
  4. Step 4: Simplify right side
    348,331.20x = 124,217,971,234.56
  5. Step 5: Solve for x
    x = 124,217,971,234.56/348,331.20
  6. Step 6: Final answer
    x = 356,608.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.