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Finding the Third Proportional to 187,426 and 411,328

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Solution

The third proportional to 187,426 and 411,328 is: 902,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,426 : 411,328 = 411,328 : x
  2. Step 2: Convert to fraction form
    187,426/411,328 = 411,328/x
  3. Step 3: Cross multiply
    187,426x = 411,328 × 411,328
  4. Step 4: Simplify right side
    187,426x = 169,190,723,584
  5. Step 5: Solve for x
    x = 169,190,723,584/187,426
  6. Step 6: Final answer
    x = 902,706.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.