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Finding the Fourth Proportional to 363,906.61, 502,193.18 and 211,035.57

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Solution

The fourth proportional to 363,906.61, 502,193.18 and 211,035.57 is: 291,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,906.61 : 502,193.18 = 211,035.57 : x
  2. Step 2: Convert to fraction form
    363,906.61/502,193.18 = 211,035.57/x
  3. Step 3: Cross multiply
    363,906.61x = 502,193.18 × 211,035.57
  4. Step 4: Simplify right side
    363,906.61x = 105,980,625,460.61
  5. Step 5: Solve for x
    x = 105,980,625,460.61/363,906.61
  6. Step 6: Final answer
    x = 291,230.28

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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.