Home / 638,231.78-957,357.59-188,998.08

Finding the Fourth Proportional to 638,231.78, 957,357.59 and 188,998.08

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Solution

The fourth proportional to 638,231.78, 957,357.59 and 188,998.08 is: 283,500.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,231.78 : 957,357.59 = 188,998.08 : x
  2. Step 2: Convert to fraction form
    638,231.78/957,357.59 = 188,998.08/x
  3. Step 3: Cross multiply
    638,231.78x = 957,357.59 × 188,998.08
  4. Step 4: Simplify right side
    638,231.78x = 180,938,746,383.43
  5. Step 5: Solve for x
    x = 180,938,746,383.43/638,231.78
  6. Step 6: Final answer
    x = 283,500.06

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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.