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Finding the Third Proportional to 703,812.75 and 1,090,711.50

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Solution

The third proportional to 703,812.75 and 1,090,711.50 is: 1,690,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,812.75 : 1,090,711.50 = 1,090,711.50 : x
  2. Step 2: Convert to fraction form
    703,812.75/1,090,711.50 = 1,090,711.50/x
  3. Step 3: Cross multiply
    703,812.75x = 1,090,711.50 × 1,090,711.50
  4. Step 4: Simplify right side
    703,812.75x = 1,189,651,576,232.25
  5. Step 5: Solve for x
    x = 1,189,651,576,232.25/703,812.75
  6. Step 6: Final answer
    x = 1,690,295.57

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.