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Finding the Fourth Proportional to 363,388.64, 501,475.80 and 202,239.85

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Solution

The fourth proportional to 363,388.64, 501,475.80 and 202,239.85 is: 279,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,388.64 : 501,475.80 = 202,239.85 : x
  2. Step 2: Convert to fraction form
    363,388.64/501,475.80 = 202,239.85/x
  3. Step 3: Cross multiply
    363,388.64x = 501,475.80 × 202,239.85
  4. Step 4: Simplify right side
    363,388.64x = 101,418,388,063.25
  5. Step 5: Solve for x
    x = 101,418,388,063.25/363,388.64
  6. Step 6: Final answer
    x = 279,090.69

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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.