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Finding the Fourth Proportional to 403,622.54, 557,001.94 and 231,548.01

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Solution

The fourth proportional to 403,622.54, 557,001.94 and 231,548.01 is: 319,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,622.54 : 557,001.94 = 231,548.01 : x
  2. Step 2: Convert to fraction form
    403,622.54/557,001.94 = 231,548.01/x
  3. Step 3: Cross multiply
    403,622.54x = 557,001.94 × 231,548.01
  4. Step 4: Simplify right side
    403,622.54x = 128,972,690,773.14
  5. Step 5: Solve for x
    x = 128,972,690,773.14/403,622.54
  6. Step 6: Final answer
    x = 319,537.88

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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.