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Finding the Fourth Proportional to 403,520.39, 556,836.53 and 222,196.93

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Solution

The fourth proportional to 403,520.39, 556,836.53 and 222,196.93 is: 306,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,520.39 : 556,836.53 = 222,196.93 : x
  2. Step 2: Convert to fraction form
    403,520.39/556,836.53 = 222,196.93/x
  3. Step 3: Cross multiply
    403,520.39x = 556,836.53 × 222,196.93
  4. Step 4: Simplify right side
    403,520.39x = 123,727,364,974.78
  5. Step 5: Solve for x
    x = 123,727,364,974.78/403,520.39
  6. Step 6: Final answer
    x = 306,619.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.