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Finding the Fourth Proportional to 362,983.20, 544,474.80 and 347,625.60

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Solution

The fourth proportional to 362,983.20, 544,474.80 and 347,625.60 is: 521,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,983.20 : 544,474.80 = 347,625.60 : x
  2. Step 2: Convert to fraction form
    362,983.20/544,474.80 = 347,625.60/x
  3. Step 3: Cross multiply
    362,983.20x = 544,474.80 × 347,625.60
  4. Step 4: Simplify right side
    362,983.20x = 189,273,379,034.88
  5. Step 5: Solve for x
    x = 189,273,379,034.88/362,983.20
  6. Step 6: Final answer
    x = 521,438.40

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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.