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Finding the Third Proportional to 371,989.50 and 792,645

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Solution

The third proportional to 371,989.50 and 792,645 is: 1,688,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,989.50 : 792,645 = 792,645 : x
  2. Step 2: Convert to fraction form
    371,989.50/792,645 = 792,645/x
  3. Step 3: Cross multiply
    371,989.50x = 792,645 × 792,645
  4. Step 4: Simplify right side
    371,989.50x = 628,286,096,025
  5. Step 5: Solve for x
    x = 628,286,096,025/371,989.50
  6. Step 6: Final answer
    x = 1,688,988.79

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.