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Finding the Third Proportional to 185,054 and 398,175

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Solution

The third proportional to 185,054 and 398,175 is: 856,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,054 : 398,175 = 398,175 : x
  2. Step 2: Convert to fraction form
    185,054/398,175 = 398,175/x
  3. Step 3: Cross multiply
    185,054x = 398,175 × 398,175
  4. Step 4: Simplify right side
    185,054x = 158,543,330,625
  5. Step 5: Solve for x
    x = 158,543,330,625/185,054
  6. Step 6: Final answer
    x = 856,740.90

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.