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Finding the Fourth Proportional to 403,342.92, 556,604.46 and 222,047.91

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Solution

The fourth proportional to 403,342.92, 556,604.46 and 222,047.91 is: 306,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,342.92 : 556,604.46 = 222,047.91 : x
  2. Step 2: Convert to fraction form
    403,342.92/556,604.46 = 222,047.91/x
  3. Step 3: Cross multiply
    403,342.92x = 556,604.46 × 222,047.91
  4. Step 4: Simplify right side
    403,342.92x = 123,592,857,039.68
  5. Step 5: Solve for x
    x = 123,592,857,039.68/403,342.92
  6. Step 6: Final answer
    x = 306,421.29

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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.