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Finding the Third Proportional to 482 and 770

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Solution

The third proportional to 482 and 770 is: 1,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    482 : 770 = 770 : x
  2. Step 2: Convert to fraction form
    482/770 = 770/x
  3. Step 3: Cross multiply
    482x = 770 × 770
  4. Step 4: Simplify right side
    482x = 592,900
  5. Step 5: Solve for x
    x = 592,900/482
  6. Step 6: Final answer
    x = 1,230.08

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.