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Finding the Fourth Proportional to 503,930.35, 695,424.84 and 274,486.93

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Solution

The fourth proportional to 503,930.35, 695,424.84 and 274,486.93 is: 378,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,930.35 : 695,424.84 = 274,486.93 : x
  2. Step 2: Convert to fraction form
    503,930.35/695,424.84 = 274,486.93/x
  3. Step 3: Cross multiply
    503,930.35x = 695,424.84 × 274,486.93
  4. Step 4: Simplify right side
    503,930.35x = 190,885,029,377.34
  5. Step 5: Solve for x
    x = 190,885,029,377.34/503,930.35
  6. Step 6: Final answer
    x = 378,792.48

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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.