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Finding the Third Proportional to 354,920 and 536,076

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Solution

The third proportional to 354,920 and 536,076 is: 809,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,920 : 536,076 = 536,076 : x
  2. Step 2: Convert to fraction form
    354,920/536,076 = 536,076/x
  3. Step 3: Cross multiply
    354,920x = 536,076 × 536,076
  4. Step 4: Simplify right side
    354,920x = 287,377,477,776
  5. Step 5: Solve for x
    x = 287,377,477,776/354,920
  6. Step 6: Final answer
    x = 809,696.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.