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Finding the Fourth Proportional to 403,637.52, 557,063.52 and 222,368.02

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Solution

The fourth proportional to 403,637.52, 557,063.52 and 222,368.02 is: 306,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,637.52 : 557,063.52 = 222,368.02 : x
  2. Step 2: Convert to fraction form
    403,637.52/557,063.52 = 222,368.02/x
  3. Step 3: Cross multiply
    403,637.52x = 557,063.52 × 222,368.02
  4. Step 4: Simplify right side
    403,637.52x = 123,873,111,956.63
  5. Step 5: Solve for x
    x = 123,873,111,956.63/403,637.52
  6. Step 6: Final answer
    x = 306,891.97

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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.