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Finding the Fourth Proportional to 362,591.20, 543,886.80 and 248,429.80

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Solution

The fourth proportional to 362,591.20, 543,886.80 and 248,429.80 is: 372,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,591.20 : 543,886.80 = 248,429.80 : x
  2. Step 2: Convert to fraction form
    362,591.20/543,886.80 = 248,429.80/x
  3. Step 3: Cross multiply
    362,591.20x = 543,886.80 × 248,429.80
  4. Step 4: Simplify right side
    362,591.20x = 135,117,688,946.64
  5. Step 5: Solve for x
    x = 135,117,688,946.64/362,591.20
  6. Step 6: Final answer
    x = 372,644.70

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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.