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Finding the Fourth Proportional to 412,381.80, 618,572.70 and 362,518.20

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Solution

The fourth proportional to 412,381.80, 618,572.70 and 362,518.20 is: 543,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,381.80 : 618,572.70 = 362,518.20 : x
  2. Step 2: Convert to fraction form
    412,381.80/618,572.70 = 362,518.20/x
  3. Step 3: Cross multiply
    412,381.80x = 618,572.70 × 362,518.20
  4. Step 4: Simplify right side
    412,381.80x = 224,243,861,773.14
  5. Step 5: Solve for x
    x = 224,243,861,773.14/412,381.80
  6. Step 6: Final answer
    x = 543,777.30

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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.