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Finding the Fourth Proportional to 503,922.98, 695,414.66 and 274,479.55

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Solution

The fourth proportional to 503,922.98, 695,414.66 and 274,479.55 is: 378,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,922.98 : 695,414.66 = 274,479.55 : x
  2. Step 2: Convert to fraction form
    503,922.98/695,414.66 = 274,479.55/x
  3. Step 3: Cross multiply
    503,922.98x = 695,414.66 × 274,479.55
  4. Step 4: Simplify right side
    503,922.98x = 190,877,099,829.27
  5. Step 5: Solve for x
    x = 190,877,099,829.27/503,922.98
  6. Step 6: Final answer
    x = 378,782.29

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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.