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Finding the Fourth Proportional to 638,231.52, 957,357.22 and 188,997.84

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Solution

The fourth proportional to 638,231.52, 957,357.22 and 188,997.84 is: 283,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,231.52 : 957,357.22 = 188,997.84 : x
  2. Step 2: Convert to fraction form
    638,231.52/957,357.22 = 188,997.84/x
  3. Step 3: Cross multiply
    638,231.52x = 957,357.22 × 188,997.84
  4. Step 4: Simplify right side
    638,231.52x = 180,938,446,688.41
  5. Step 5: Solve for x
    x = 180,938,446,688.41/638,231.52
  6. Step 6: Final answer
    x = 283,499.70

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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.