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Finding the Fourth Proportional to 493,163.80, 739,091.70 and 253,268.02

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Solution

The fourth proportional to 493,163.80, 739,091.70 and 253,268.02 is: 379,566.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,163.80 : 739,091.70 = 253,268.02 : x
  2. Step 2: Convert to fraction form
    493,163.80/739,091.70 = 253,268.02/x
  3. Step 3: Cross multiply
    493,163.80x = 739,091.70 × 253,268.02
  4. Step 4: Simplify right side
    493,163.80x = 187,188,291,457.43
  5. Step 5: Solve for x
    x = 187,188,291,457.43/493,163.80
  6. Step 6: Final answer
    x = 379,566.16

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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.