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Finding the Fourth Proportional to 363,691.47, 501,858.20 and 202,561.48

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Solution

The fourth proportional to 363,691.47, 501,858.20 and 202,561.48 is: 279,514.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,691.47 : 501,858.20 = 202,561.48 : x
  2. Step 2: Convert to fraction form
    363,691.47/501,858.20 = 202,561.48/x
  3. Step 3: Cross multiply
    363,691.47x = 501,858.20 × 202,561.48
  4. Step 4: Simplify right side
    363,691.47x = 101,657,138,993.89
  5. Step 5: Solve for x
    x = 101,657,138,993.89/363,691.47
  6. Step 6: Final answer
    x = 279,514.77

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1.5x scale

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.