Home / 1,171,500.96-1,755,245.40-639,395.34

Finding the Fourth Proportional to 1,171,500.96, 1,755,245.40 and 639,395.34

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Solution

The fourth proportional to 1,171,500.96, 1,755,245.40 and 639,395.34 is: 957,998.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,500.96 : 1,755,245.40 = 639,395.34 : x
  2. Step 2: Convert to fraction form
    1,171,500.96/1,755,245.40 = 639,395.34/x
  3. Step 3: Cross multiply
    1,171,500.96x = 1,755,245.40 × 639,395.34
  4. Step 4: Simplify right side
    1,171,500.96x = 1,122,295,729,316.44
  5. Step 5: Solve for x
    x = 1,122,295,729,316.44/1,171,500.96
  6. Step 6: Final answer
    x = 957,998.13

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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.