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Finding the Fourth Proportional to 574,462.85, 792,759.89 and 319,823.15

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Solution

The fourth proportional to 574,462.85, 792,759.89 and 319,823.15 is: 441,356.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,462.85 : 792,759.89 = 319,823.15 : x
  2. Step 2: Convert to fraction form
    574,462.85/792,759.89 = 319,823.15/x
  3. Step 3: Cross multiply
    574,462.85x = 792,759.89 × 319,823.15
  4. Step 4: Simplify right side
    574,462.85x = 253,542,962,049.21
  5. Step 5: Solve for x
    x = 253,542,962,049.21/574,462.85
  6. Step 6: Final answer
    x = 441,356.59

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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.