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Finding the Fourth Proportional to 503,885.05, 695,374.55 and 274,451.03

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Solution

The fourth proportional to 503,885.05, 695,374.55 and 274,451.03 is: 378,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,885.05 : 695,374.55 = 274,451.03 : x
  2. Step 2: Convert to fraction form
    503,885.05/695,374.55 = 274,451.03/x
  3. Step 3: Cross multiply
    503,885.05x = 695,374.55 × 274,451.03
  4. Step 4: Simplify right side
    503,885.05x = 190,846,263,410.59
  5. Step 5: Solve for x
    x = 190,846,263,410.59/503,885.05
  6. Step 6: Final answer
    x = 378,749.60

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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.