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Finding the Fourth Proportional to 403,637.51, 557,063.52 and 222,368.01

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Solution

The fourth proportional to 403,637.51, 557,063.52 and 222,368.01 is: 306,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,637.51 : 557,063.52 = 222,368.01 : x
  2. Step 2: Convert to fraction form
    403,637.51/557,063.52 = 222,368.01/x
  3. Step 3: Cross multiply
    403,637.51x = 557,063.52 × 222,368.01
  4. Step 4: Simplify right side
    403,637.51x = 123,873,105,274.16
  5. Step 5: Solve for x
    x = 123,873,105,274.16/403,637.51
  6. Step 6: Final answer
    x = 306,891.96

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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.