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Finding the Third Proportional to 186,304.50 and 398,853

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Solution

The third proportional to 186,304.50 and 398,853 is: 853,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,304.50 : 398,853 = 398,853 : x
  2. Step 2: Convert to fraction form
    186,304.50/398,853 = 398,853/x
  3. Step 3: Cross multiply
    186,304.50x = 398,853 × 398,853
  4. Step 4: Simplify right side
    186,304.50x = 159,083,715,609
  5. Step 5: Solve for x
    x = 159,083,715,609/186,304.50
  6. Step 6: Final answer
    x = 853,890.89

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.