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Finding the Fourth Proportional to 363,436.99, 501,543.07 and 202,288.58

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Solution

The fourth proportional to 363,436.99, 501,543.07 and 202,288.58 is: 279,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,436.99 : 501,543.07 = 202,288.58 : x
  2. Step 2: Convert to fraction form
    363,436.99/501,543.07 = 202,288.58/x
  3. Step 3: Cross multiply
    363,436.99x = 501,543.07 × 202,288.58
  4. Step 4: Simplify right side
    363,436.99x = 101,456,436,854.95
  5. Step 5: Solve for x
    x = 101,456,436,854.95/363,436.99
  6. Step 6: Final answer
    x = 279,158.26

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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.