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Finding the Fourth Proportional to 574,211.66, 792,404.36 and 319,562.78

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Solution

The fourth proportional to 574,211.66, 792,404.36 and 319,562.78 is: 440,992.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,211.66 : 792,404.36 = 319,562.78 : x
  2. Step 2: Convert to fraction form
    574,211.66/792,404.36 = 319,562.78/x
  3. Step 3: Cross multiply
    574,211.66x = 792,404.36 × 319,562.78
  4. Step 4: Simplify right side
    574,211.66x = 253,222,940,165.72
  5. Step 5: Solve for x
    x = 253,222,940,165.72/574,211.66
  6. Step 6: Final answer
    x = 440,992.33

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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.