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Finding the Fourth Proportional to 404,504.79, 557,996.65 and 251,567.88

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Solution

The fourth proportional to 404,504.79, 557,996.65 and 251,567.88 is: 347,026.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,504.79 : 557,996.65 = 251,567.88 : x
  2. Step 2: Convert to fraction form
    404,504.79/557,996.65 = 251,567.88/x
  3. Step 3: Cross multiply
    404,504.79x = 557,996.65 × 251,567.88
  4. Step 4: Simplify right side
    404,504.79x = 140,374,031,566.20
  5. Step 5: Solve for x
    x = 140,374,031,566.20/404,504.79
  6. Step 6: Final answer
    x = 347,026.87

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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.