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Finding the Third Proportional to 635,352 and 987,880

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Solution

The third proportional to 635,352 and 987,880 is: 1,536,009.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,352 : 987,880 = 987,880 : x
  2. Step 2: Convert to fraction form
    635,352/987,880 = 987,880/x
  3. Step 3: Cross multiply
    635,352x = 987,880 × 987,880
  4. Step 4: Simplify right side
    635,352x = 975,906,894,400
  5. Step 5: Solve for x
    x = 975,906,894,400/635,352
  6. Step 6: Final answer
    x = 1,536,009.79

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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.