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Finding the Third Proportional to 890,070 and 1,972,324

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Solution

The third proportional to 890,070 and 1,972,324 is: 4,370,512.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,070 : 1,972,324 = 1,972,324 : x
  2. Step 2: Convert to fraction form
    890,070/1,972,324 = 1,972,324/x
  3. Step 3: Cross multiply
    890,070x = 1,972,324 × 1,972,324
  4. Step 4: Simplify right side
    890,070x = 3,890,061,960,976
  5. Step 5: Solve for x
    x = 3,890,061,960,976/890,070
  6. Step 6: Final answer
    x = 4,370,512.39

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.