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Finding the Fourth Proportional to 503,922.60, 695,414.14 and 274,479.16

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Solution

The fourth proportional to 503,922.60, 695,414.14 and 274,479.16 is: 378,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,922.60 : 695,414.14 = 274,479.16 : x
  2. Step 2: Convert to fraction form
    503,922.60/695,414.14 = 274,479.16/x
  3. Step 3: Cross multiply
    503,922.60x = 695,414.14 × 274,479.16
  4. Step 4: Simplify right side
    503,922.60x = 190,876,688,999.32
  5. Step 5: Solve for x
    x = 190,876,688,999.32/503,922.60
  6. Step 6: Final answer
    x = 378,781.76

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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.