Home / 861,334.58-1,188,620.71-474,146.51

Finding the Fourth Proportional to 861,334.58, 1,188,620.71 and 474,146.51

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Solution

The fourth proportional to 861,334.58, 1,188,620.71 and 474,146.51 is: 654,310.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,334.58 : 1,188,620.71 = 474,146.51 : x
  2. Step 2: Convert to fraction form
    861,334.58/1,188,620.71 = 474,146.51/x
  3. Step 3: Cross multiply
    861,334.58x = 1,188,620.71 × 474,146.51
  4. Step 4: Simplify right side
    861,334.58x = 563,580,354,231.75
  5. Step 5: Solve for x
    x = 563,580,354,231.75/861,334.58
  6. Step 6: Final answer
    x = 654,310.61

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Double scale
Find fourth proportional to 861,335.58, 1,188,622.09 and 474,147.51
Similar ratio
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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.