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Finding the Fourth Proportional to 362,435.20, 543,725.70 and 303,677.80

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Solution

The fourth proportional to 362,435.20, 543,725.70 and 303,677.80 is: 455,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,435.20 : 543,725.70 = 303,677.80 : x
  2. Step 2: Convert to fraction form
    362,435.20/543,725.70 = 303,677.80/x
  3. Step 3: Cross multiply
    362,435.20x = 543,725.70 × 303,677.80
  4. Step 4: Simplify right side
    362,435.20x = 165,117,424,379.46
  5. Step 5: Solve for x
    x = 165,117,424,379.46/362,435.20
  6. Step 6: Final answer
    x = 455,577.78

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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.