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Finding the Third Proportional to 632.63 and 898.31

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Solution

The third proportional to 632.63 and 898.31 is: 1,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.63 : 898.31 = 898.31 : x
  2. Step 2: Convert to fraction form
    632.63/898.31 = 898.31/x
  3. Step 3: Cross multiply
    632.63x = 898.31 × 898.31
  4. Step 4: Simplify right side
    632.63x = 806,965.35
  5. Step 5: Solve for x
    x = 806,965.35/632.63
  6. Step 6: Final answer
    x = 1,275.58

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.