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Finding the Third Proportional to 185,216 and 398,046

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Solution

The third proportional to 185,216 and 398,046 is: 855,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,216 : 398,046 = 398,046 : x
  2. Step 2: Convert to fraction form
    185,216/398,046 = 398,046/x
  3. Step 3: Cross multiply
    185,216x = 398,046 × 398,046
  4. Step 4: Simplify right side
    185,216x = 158,440,618,116
  5. Step 5: Solve for x
    x = 158,440,618,116/185,216
  6. Step 6: Final answer
    x = 855,436.99

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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.