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Finding the Fourth Proportional to 496,999.10, 685,866.57 and 270,644.42

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Solution

The fourth proportional to 496,999.10, 685,866.57 and 270,644.42 is: 373,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,999.10 : 685,866.57 = 270,644.42 : x
  2. Step 2: Convert to fraction form
    496,999.10/685,866.57 = 270,644.42/x
  3. Step 3: Cross multiply
    496,999.10x = 685,866.57 × 270,644.42
  4. Step 4: Simplify right side
    496,999.10x = 185,625,960,035.04
  5. Step 5: Solve for x
    x = 185,625,960,035.04/496,999.10
  6. Step 6: Final answer
    x = 373,493.55

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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.