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Finding the Third Proportional to 542,690 and 1,100,156

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Solution

The third proportional to 542,690 and 1,100,156 is: 2,230,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,690 : 1,100,156 = 1,100,156 : x
  2. Step 2: Convert to fraction form
    542,690/1,100,156 = 1,100,156/x
  3. Step 3: Cross multiply
    542,690x = 1,100,156 × 1,100,156
  4. Step 4: Simplify right side
    542,690x = 1,210,343,224,336
  5. Step 5: Solve for x
    x = 1,210,343,224,336/542,690
  6. Step 6: Final answer
    x = 2,230,266.31

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.