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Finding the Third Proportional to 905,172.75 and 1,342,090.13

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Solution

The third proportional to 905,172.75 and 1,342,090.13 is: 1,989,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,172.75 : 1,342,090.13 = 1,342,090.13 : x
  2. Step 2: Convert to fraction form
    905,172.75/1,342,090.13 = 1,342,090.13/x
  3. Step 3: Cross multiply
    905,172.75x = 1,342,090.13 × 1,342,090.13
  4. Step 4: Simplify right side
    905,172.75x = 1,801,205,903,622.52
  5. Step 5: Solve for x
    x = 1,801,205,903,622.52/905,172.75
  6. Step 6: Final answer
    x = 1,989,902.93

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.