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Finding the Third Proportional to 619,840 and 957,792

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Solution

The third proportional to 619,840 and 957,792 is: 1,480,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,840 : 957,792 = 957,792 : x
  2. Step 2: Convert to fraction form
    619,840/957,792 = 957,792/x
  3. Step 3: Cross multiply
    619,840x = 957,792 × 957,792
  4. Step 4: Simplify right side
    619,840x = 917,365,515,264
  5. Step 5: Solve for x
    x = 917,365,515,264/619,840
  6. Step 6: Final answer
    x = 1,480,003.74

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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.