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Finding the Third Proportional to 191.63 and 413.06

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Solution

The third proportional to 191.63 and 413.06 is: 890.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.63 : 413.06 = 413.06 : x
  2. Step 2: Convert to fraction form
    191.63/413.06 = 413.06/x
  3. Step 3: Cross multiply
    191.63x = 413.06 × 413.06
  4. Step 4: Simplify right side
    191.63x = 170,620.63
  5. Step 5: Solve for x
    x = 170,620.63/191.63
  6. Step 6: Final answer
    x = 890.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.