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Finding the Third Proportional to 319,530 and 695,436

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Solution

The third proportional to 319,530 and 695,436 is: 1,513,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,530 : 695,436 = 695,436 : x
  2. Step 2: Convert to fraction form
    319,530/695,436 = 695,436/x
  3. Step 3: Cross multiply
    319,530x = 695,436 × 695,436
  4. Step 4: Simplify right side
    319,530x = 483,631,230,096
  5. Step 5: Solve for x
    x = 483,631,230,096/319,530
  6. Step 6: Final answer
    x = 1,513,570.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.