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Finding the Fourth Proportional to 363,401.61, 501,489.16 and 202,256.70

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Solution

The fourth proportional to 363,401.61, 501,489.16 and 202,256.70 is: 279,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,401.61 : 501,489.16 = 202,256.70 : x
  2. Step 2: Convert to fraction form
    363,401.61/501,489.16 = 202,256.70/x
  3. Step 3: Cross multiply
    363,401.61x = 501,489.16 × 202,256.70
  4. Step 4: Simplify right side
    363,401.61x = 101,429,542,587.37
  5. Step 5: Solve for x
    x = 101,429,542,587.37/363,401.61
  6. Step 6: Final answer
    x = 279,111.43

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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.