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Finding the Fourth Proportional to 538,007.10, 806,945.85 and 222,431.10

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Solution

The fourth proportional to 538,007.10, 806,945.85 and 222,431.10 is: 333,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,007.10 : 806,945.85 = 222,431.10 : x
  2. Step 2: Convert to fraction form
    538,007.10/806,945.85 = 222,431.10/x
  3. Step 3: Cross multiply
    538,007.10x = 806,945.85 × 222,431.10
  4. Step 4: Simplify right side
    538,007.10x = 179,489,853,055.94
  5. Step 5: Solve for x
    x = 179,489,853,055.94/538,007.10
  6. Step 6: Final answer
    x = 333,619.86

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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.