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Finding the Third Proportional to 619,776 and 957,690

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Solution

The third proportional to 619,776 and 957,690 is: 1,479,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,776 : 957,690 = 957,690 : x
  2. Step 2: Convert to fraction form
    619,776/957,690 = 957,690/x
  3. Step 3: Cross multiply
    619,776x = 957,690 × 957,690
  4. Step 4: Simplify right side
    619,776x = 917,170,136,100
  5. Step 5: Solve for x
    x = 917,170,136,100/619,776
  6. Step 6: Final answer
    x = 1,479,841.32

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.