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Finding the Third Proportional to 720,616.50 and 1,105,346.25

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Solution

The third proportional to 720,616.50 and 1,105,346.25 is: 1,695,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,616.50 : 1,105,346.25 = 1,105,346.25 : x
  2. Step 2: Convert to fraction form
    720,616.50/1,105,346.25 = 1,105,346.25/x
  3. Step 3: Cross multiply
    720,616.50x = 1,105,346.25 × 1,105,346.25
  4. Step 4: Simplify right side
    720,616.50x = 1,221,790,332,389.06
  5. Step 5: Solve for x
    x = 1,221,790,332,389.06/720,616.50
  6. Step 6: Final answer
    x = 1,695,479.26

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.