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Finding the Fourth Proportional to 486,633.69, 729,993.87 and 171,093.33

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Solution

The fourth proportional to 486,633.69, 729,993.87 and 171,093.33 is: 256,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,633.69 : 729,993.87 = 171,093.33 : x
  2. Step 2: Convert to fraction form
    486,633.69/729,993.87 = 171,093.33/x
  3. Step 3: Cross multiply
    486,633.69x = 729,993.87 × 171,093.33
  4. Step 4: Simplify right side
    486,633.69x = 124,897,082,097.89
  5. Step 5: Solve for x
    x = 124,897,082,097.89/486,633.69
  6. Step 6: Final answer
    x = 256,655.23

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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.