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Finding the Third Proportional to 1,397,823.75 and 3,057,358.50

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Solution

The third proportional to 1,397,823.75 and 3,057,358.50 is: 6,687,138.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,823.75 : 3,057,358.50 = 3,057,358.50 : x
  2. Step 2: Convert to fraction form
    1,397,823.75/3,057,358.50 = 3,057,358.50/x
  3. Step 3: Cross multiply
    1,397,823.75x = 3,057,358.50 × 3,057,358.50
  4. Step 4: Simplify right side
    1,397,823.75x = 9,347,440,997,522.25
  5. Step 5: Solve for x
    x = 9,347,440,997,522.25/1,397,823.75
  6. Step 6: Final answer
    x = 6,687,138.49

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.