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Finding the Fourth Proportional to 364,390.38, 502,859.61 and 203,255.87

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Solution

The fourth proportional to 364,390.38, 502,859.61 and 203,255.87 is: 280,493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,390.38 : 502,859.61 = 203,255.87 : x
  2. Step 2: Convert to fraction form
    364,390.38/502,859.61 = 203,255.87/x
  3. Step 3: Cross multiply
    364,390.38x = 502,859.61 × 203,255.87
  4. Step 4: Simplify right side
    364,390.38x = 102,209,165,004.11
  5. Step 5: Solve for x
    x = 102,209,165,004.11/364,390.38
  6. Step 6: Final answer
    x = 280,493.59

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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.