Home / 1,276,073.78-1,761,105.92-953,223.38

Finding the Fourth Proportional to 1,276,073.78, 1,761,105.92 and 953,223.38

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Solution

The fourth proportional to 1,276,073.78, 1,761,105.92 and 953,223.38 is: 1,315,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,073.78 : 1,761,105.92 = 953,223.38 : x
  2. Step 2: Convert to fraction form
    1,276,073.78/1,761,105.92 = 953,223.38/x
  3. Step 3: Cross multiply
    1,276,073.78x = 1,761,105.92 × 953,223.38
  4. Step 4: Simplify right side
    1,276,073.78x = 1,678,727,324,028.76
  5. Step 5: Solve for x
    x = 1,678,727,324,028.76/1,276,073.78
  6. Step 6: Final answer
    x = 1,315,540.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.