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Finding the Third Proportional to 202,516 and 314,388

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Solution

The third proportional to 202,516 and 314,388 is: 488,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,516 : 314,388 = 314,388 : x
  2. Step 2: Convert to fraction form
    202,516/314,388 = 314,388/x
  3. Step 3: Cross multiply
    202,516x = 314,388 × 314,388
  4. Step 4: Simplify right side
    202,516x = 98,839,814,544
  5. Step 5: Solve for x
    x = 98,839,814,544/202,516
  6. Step 6: Final answer
    x = 488,059.29

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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.