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Finding the Third Proportional to 201,943 and 316,814

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Solution

The third proportional to 201,943 and 316,814 is: 497,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,943 : 316,814 = 316,814 : x
  2. Step 2: Convert to fraction form
    201,943/316,814 = 316,814/x
  3. Step 3: Cross multiply
    201,943x = 316,814 × 316,814
  4. Step 4: Simplify right side
    201,943x = 100,371,110,596
  5. Step 5: Solve for x
    x = 100,371,110,596/201,943
  6. Step 6: Final answer
    x = 497,026.94

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.