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Finding the Third Proportional to 201,894 and 313,492

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Solution

The third proportional to 201,894 and 313,492 is: 486,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,894 : 313,492 = 313,492 : x
  2. Step 2: Convert to fraction form
    201,894/313,492 = 313,492/x
  3. Step 3: Cross multiply
    201,894x = 313,492 × 313,492
  4. Step 4: Simplify right side
    201,894x = 98,277,234,064
  5. Step 5: Solve for x
    x = 98,277,234,064/201,894
  6. Step 6: Final answer
    x = 486,776.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.