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Finding the Third Proportional to 616.36 and 992.67

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Solution

The third proportional to 616.36 and 992.67 is: 1,598.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.36 : 992.67 = 992.67 : x
  2. Step 2: Convert to fraction form
    616.36/992.67 = 992.67/x
  3. Step 3: Cross multiply
    616.36x = 992.67 × 992.67
  4. Step 4: Simplify right side
    616.36x = 985,397.45
  5. Step 5: Solve for x
    x = 985,397.45/616.36
  6. Step 6: Final answer
    x = 1,598.74

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.