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Finding the Fourth Proportional to 403,804.51, 557,274.62 and 222,516.13

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Solution

The fourth proportional to 403,804.51, 557,274.62 and 222,516.13 is: 307,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,804.51 : 557,274.62 = 222,516.13 : x
  2. Step 2: Convert to fraction form
    403,804.51/557,274.62 = 222,516.13/x
  3. Step 3: Cross multiply
    403,804.51x = 557,274.62 × 222,516.13
  4. Step 4: Simplify right side
    403,804.51x = 124,002,591,789.62
  5. Step 5: Solve for x
    x = 124,002,591,789.62/403,804.51
  6. Step 6: Final answer
    x = 307,085.70

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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.