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Finding the Third Proportional to 999,600 and 2,176,680

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Solution

The third proportional to 999,600 and 2,176,680 is: 4,739,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,600 : 2,176,680 = 2,176,680 : x
  2. Step 2: Convert to fraction form
    999,600/2,176,680 = 2,176,680/x
  3. Step 3: Cross multiply
    999,600x = 2,176,680 × 2,176,680
  4. Step 4: Simplify right side
    999,600x = 4,737,935,822,400
  5. Step 5: Solve for x
    x = 4,737,935,822,400/999,600
  6. Step 6: Final answer
    x = 4,739,831.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.