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Finding the Fourth Proportional to 619,008.57, 853,917.43 and 404,274.33

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Solution

The fourth proportional to 619,008.57, 853,917.43 and 404,274.33 is: 557,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,008.57 : 853,917.43 = 404,274.33 : x
  2. Step 2: Convert to fraction form
    619,008.57/853,917.43 = 404,274.33/x
  3. Step 3: Cross multiply
    619,008.57x = 853,917.43 × 404,274.33
  4. Step 4: Simplify right side
    619,008.57x = 345,216,892,675.70
  5. Step 5: Solve for x
    x = 345,216,892,675.70/619,008.57
  6. Step 6: Final answer
    x = 557,693.24

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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.