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Finding the Third Proportional to 583.50 and 903.47

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Solution

The third proportional to 583.50 and 903.47 is: 1,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.50 : 903.47 = 903.47 : x
  2. Step 2: Convert to fraction form
    583.50/903.47 = 903.47/x
  3. Step 3: Cross multiply
    583.50x = 903.47 × 903.47
  4. Step 4: Simplify right side
    583.50x = 816,255.78
  5. Step 5: Solve for x
    x = 816,255.78/583.50
  6. Step 6: Final answer
    x = 1,398.90

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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.