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Finding the Fourth Proportional to 403,392.52, 556,694.94 and 222,117.76

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Solution

The fourth proportional to 403,392.52, 556,694.94 and 222,117.76 is: 306,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,392.52 : 556,694.94 = 222,117.76 : x
  2. Step 2: Convert to fraction form
    403,392.52/556,694.94 = 222,117.76/x
  3. Step 3: Cross multiply
    403,392.52x = 556,694.94 × 222,117.76
  4. Step 4: Simplify right side
    403,392.52x = 123,651,833,076.13
  5. Step 5: Solve for x
    x = 123,651,833,076.13/403,392.52
  6. Step 6: Final answer
    x = 306,529.81

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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.