Home / 812,063.36-1,120,649.57-449,512.22

Finding the Fourth Proportional to 812,063.36, 1,120,649.57 and 449,512.22

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Solution

The fourth proportional to 812,063.36, 1,120,649.57 and 449,512.22 is: 620,328.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,063.36 : 1,120,649.57 = 449,512.22 : x
  2. Step 2: Convert to fraction form
    812,063.36/1,120,649.57 = 449,512.22/x
  3. Step 3: Cross multiply
    812,063.36x = 1,120,649.57 × 449,512.22
  4. Step 4: Simplify right side
    812,063.36x = 503,745,668,201.94
  5. Step 5: Solve for x
    x = 503,745,668,201.94/812,063.36
  6. Step 6: Final answer
    x = 620,328.04

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Double scale
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1.5x scale

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.