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Finding the Third Proportional to 315,048 and 682,584

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Solution

The third proportional to 315,048 and 682,584 is: 1,478,888.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,048 : 682,584 = 682,584 : x
  2. Step 2: Convert to fraction form
    315,048/682,584 = 682,584/x
  3. Step 3: Cross multiply
    315,048x = 682,584 × 682,584
  4. Step 4: Simplify right side
    315,048x = 465,920,917,056
  5. Step 5: Solve for x
    x = 465,920,917,056/315,048
  6. Step 6: Final answer
    x = 1,478,888.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.