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Finding the Fourth Proportional to 401,450.63, 554,001.86 and 222,602.63

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Solution

The fourth proportional to 401,450.63, 554,001.86 and 222,602.63 is: 307,191.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,450.63 : 554,001.86 = 222,602.63 : x
  2. Step 2: Convert to fraction form
    401,450.63/554,001.86 = 222,602.63/x
  3. Step 3: Cross multiply
    401,450.63x = 554,001.86 × 222,602.63
  4. Step 4: Simplify right side
    401,450.63x = 123,322,268,847.39
  5. Step 5: Solve for x
    x = 123,322,268,847.39/401,450.63
  6. Step 6: Final answer
    x = 307,191.62

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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.