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Finding the Fourth Proportional to 380,630.01, 571,299.26 and 193,781.37

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Solution

The fourth proportional to 380,630.01, 571,299.26 and 193,781.37 is: 290,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,630.01 : 571,299.26 = 193,781.37 : x
  2. Step 2: Convert to fraction form
    380,630.01/571,299.26 = 193,781.37/x
  3. Step 3: Cross multiply
    380,630.01x = 571,299.26 × 193,781.37
  4. Step 4: Simplify right side
    380,630.01x = 110,707,152,313.88
  5. Step 5: Solve for x
    x = 110,707,152,313.88/380,630.01
  6. Step 6: Final answer
    x = 290,852.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.