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Finding the Third Proportional to 655,254 and 1,438,987

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Solution

The third proportional to 655,254 and 1,438,987 is: 3,160,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,254 : 1,438,987 = 1,438,987 : x
  2. Step 2: Convert to fraction form
    655,254/1,438,987 = 1,438,987/x
  3. Step 3: Cross multiply
    655,254x = 1,438,987 × 1,438,987
  4. Step 4: Simplify right side
    655,254x = 2,070,683,586,169
  5. Step 5: Solve for x
    x = 2,070,683,586,169/655,254
  6. Step 6: Final answer
    x = 3,160,123.53

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.