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Finding the Fourth Proportional to 363,618.89, 501,808.86 and 202,463.72

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Solution

The fourth proportional to 363,618.89, 501,808.86 and 202,463.72 is: 279,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,618.89 : 501,808.86 = 202,463.72 : x
  2. Step 2: Convert to fraction form
    363,618.89/501,808.86 = 202,463.72/x
  3. Step 3: Cross multiply
    363,618.89x = 501,808.86 × 202,463.72
  4. Step 4: Simplify right side
    363,618.89x = 101,598,086,015.52
  5. Step 5: Solve for x
    x = 101,598,086,015.52/363,618.89
  6. Step 6: Final answer
    x = 279,408.17

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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.