Home / 1,276,930.83-1,915,396.25-435,489.87

Finding the Fourth Proportional to 1,276,930.83, 1,915,396.25 and 435,489.87

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Solution

The fourth proportional to 1,276,930.83, 1,915,396.25 and 435,489.87 is: 653,234.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,930.83 : 1,915,396.25 = 435,489.87 : x
  2. Step 2: Convert to fraction form
    1,276,930.83/1,915,396.25 = 435,489.87/x
  3. Step 3: Cross multiply
    1,276,930.83x = 1,915,396.25 × 435,489.87
  4. Step 4: Simplify right side
    1,276,930.83x = 834,135,661,733.54
  5. Step 5: Solve for x
    x = 834,135,661,733.54/1,276,930.83
  6. Step 6: Final answer
    x = 653,234.81

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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.