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Finding the Fourth Proportional to 352,809.92, 486,917.44 and 199,858.56

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Solution

The fourth proportional to 352,809.92, 486,917.44 and 199,858.56 is: 275,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,809.92 : 486,917.44 = 199,858.56 : x
  2. Step 2: Convert to fraction form
    352,809.92/486,917.44 = 199,858.56/x
  3. Step 3: Cross multiply
    352,809.92x = 486,917.44 × 199,858.56
  4. Step 4: Simplify right side
    352,809.92x = 97,314,618,397.29
  5. Step 5: Solve for x
    x = 97,314,618,397.29/352,809.92
  6. Step 6: Final answer
    x = 275,827.33

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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.