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Finding the Fourth Proportional to 481,299.68, 721,591.70 and 291,713.52

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Solution

The fourth proportional to 481,299.68, 721,591.70 and 291,713.52 is: 437,353.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,299.68 : 721,591.70 = 291,713.52 : x
  2. Step 2: Convert to fraction form
    481,299.68/721,591.70 = 291,713.52/x
  3. Step 3: Cross multiply
    481,299.68x = 721,591.70 × 291,713.52
  4. Step 4: Simplify right side
    481,299.68x = 210,498,054,809.78
  5. Step 5: Solve for x
    x = 210,498,054,809.78/481,299.68
  6. Step 6: Final answer
    x = 437,353.41

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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.