Home / 751,173.42-1,126,801.17-190,212.78

Finding the Fourth Proportional to 751,173.42, 1,126,801.17 and 190,212.78

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Solution

The fourth proportional to 751,173.42, 1,126,801.17 and 190,212.78 is: 285,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,173.42 : 1,126,801.17 = 190,212.78 : x
  2. Step 2: Convert to fraction form
    751,173.42/1,126,801.17 = 190,212.78/x
  3. Step 3: Cross multiply
    751,173.42x = 1,126,801.17 × 190,212.78
  4. Step 4: Simplify right side
    751,173.42x = 214,331,983,052.95
  5. Step 5: Solve for x
    x = 214,331,983,052.95/751,173.42
  6. Step 6: Final answer
    x = 285,329.56

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Double scale
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Similar ratio
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1.5x scale

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.