Home / 1,086,331.20-1,629,495.36-612,801.60

Finding the Fourth Proportional to 1,086,331.20, 1,629,495.36 and 612,801.60

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Solution

The fourth proportional to 1,086,331.20, 1,629,495.36 and 612,801.60 is: 919,201.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,331.20 : 1,629,495.36 = 612,801.60 : x
  2. Step 2: Convert to fraction form
    1,086,331.20/1,629,495.36 = 612,801.60/x
  3. Step 3: Cross multiply
    1,086,331.20x = 1,629,495.36 × 612,801.60
  4. Step 4: Simplify right side
    1,086,331.20x = 998,557,363,800.58
  5. Step 5: Solve for x
    x = 998,557,363,800.58/1,086,331.20
  6. Step 6: Final answer
    x = 919,201.59

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Double scale
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Similar ratio
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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.