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Finding the Fourth Proportional to 373,446.68, 515,353.97 and 212,301.77

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Solution

The fourth proportional to 373,446.68, 515,353.97 and 212,301.77 is: 292,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,446.68 : 515,353.97 = 212,301.77 : x
  2. Step 2: Convert to fraction form
    373,446.68/515,353.97 = 212,301.77/x
  3. Step 3: Cross multiply
    373,446.68x = 515,353.97 × 212,301.77
  4. Step 4: Simplify right side
    373,446.68x = 109,410,556,369.25
  5. Step 5: Solve for x
    x = 109,410,556,369.25/373,446.68
  6. Step 6: Final answer
    x = 292,975.04

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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.