Home / 851,189.40-1,174,649.36-469,229.85

Finding the Fourth Proportional to 851,189.40, 1,174,649.36 and 469,229.85

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Solution

The fourth proportional to 851,189.40, 1,174,649.36 and 469,229.85 is: 647,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,189.40 : 1,174,649.36 = 469,229.85 : x
  2. Step 2: Convert to fraction form
    851,189.40/1,174,649.36 = 469,229.85/x
  3. Step 3: Cross multiply
    851,189.40x = 1,174,649.36 × 469,229.85
  4. Step 4: Simplify right side
    851,189.40x = 551,180,540,649.25
  5. Step 5: Solve for x
    x = 551,180,540,649.25/851,189.40
  6. Step 6: Final answer
    x = 647,541.59

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Double scale
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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.