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Finding the Third Proportional to 424 and 714

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Solution

The third proportional to 424 and 714 is: 1,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424 : 714 = 714 : x
  2. Step 2: Convert to fraction form
    424/714 = 714/x
  3. Step 3: Cross multiply
    424x = 714 × 714
  4. Step 4: Simplify right side
    424x = 509,796
  5. Step 5: Solve for x
    x = 509,796/424
  6. Step 6: Final answer
    x = 1,202.35

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.