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Finding the Third Proportional to 927,640 and 1,322,987

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Solution

The third proportional to 927,640 and 1,322,987 is: 1,886,825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,640 : 1,322,987 = 1,322,987 : x
  2. Step 2: Convert to fraction form
    927,640/1,322,987 = 1,322,987/x
  3. Step 3: Cross multiply
    927,640x = 1,322,987 × 1,322,987
  4. Step 4: Simplify right side
    927,640x = 1,750,294,602,169
  5. Step 5: Solve for x
    x = 1,750,294,602,169/927,640
  6. Step 6: Final answer
    x = 1,886,825.28

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.