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Finding the Fourth Proportional to 503,748.45, 695,171.77 and 274,302.18

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Solution

The fourth proportional to 503,748.45, 695,171.77 and 274,302.18 is: 378,536.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,748.45 : 695,171.77 = 274,302.18 : x
  2. Step 2: Convert to fraction form
    503,748.45/695,171.77 = 274,302.18/x
  3. Step 3: Cross multiply
    503,748.45x = 695,171.77 × 274,302.18
  4. Step 4: Simplify right side
    503,748.45x = 190,687,131,299.70
  5. Step 5: Solve for x
    x = 190,687,131,299.70/503,748.45
  6. Step 6: Final answer
    x = 378,536.41

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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.