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Finding the Fourth Proportional to 363,914.54, 502,187.78 and 202,765.46

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Solution

The fourth proportional to 363,914.54, 502,187.78 and 202,765.46 is: 279,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,914.54 : 502,187.78 = 202,765.46 : x
  2. Step 2: Convert to fraction form
    363,914.54/502,187.78 = 202,765.46/x
  3. Step 3: Cross multiply
    363,914.54x = 502,187.78 × 202,765.46
  4. Step 4: Simplify right side
    363,914.54x = 101,826,336,218.08
  5. Step 5: Solve for x
    x = 101,826,336,218.08/363,914.54
  6. Step 6: Final answer
    x = 279,808.38

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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.