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Finding the Third Proportional to 379,156 and 569,706

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Solution

The third proportional to 379,156 and 569,706 is: 856,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,156 : 569,706 = 569,706 : x
  2. Step 2: Convert to fraction form
    379,156/569,706 = 569,706/x
  3. Step 3: Cross multiply
    379,156x = 569,706 × 569,706
  4. Step 4: Simplify right side
    379,156x = 324,564,926,436
  5. Step 5: Solve for x
    x = 324,564,926,436/379,156
  6. Step 6: Final answer
    x = 856,019.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.