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Finding the Fourth Proportional to 481,405.80, 722,627.10 and 271,453.80

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Solution

The fourth proportional to 481,405.80, 722,627.10 and 271,453.80 is: 407,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,405.80 : 722,627.10 = 271,453.80 : x
  2. Step 2: Convert to fraction form
    481,405.80/722,627.10 = 271,453.80/x
  3. Step 3: Cross multiply
    481,405.80x = 722,627.10 × 271,453.80
  4. Step 4: Simplify right side
    481,405.80x = 196,159,872,277.98
  5. Step 5: Solve for x
    x = 196,159,872,277.98/481,405.80
  6. Step 6: Final answer
    x = 407,473.01

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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.