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Finding the Third Proportional to 786,876.75 and 1,215,033.75

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Solution

The third proportional to 786,876.75 and 1,215,033.75 is: 1,876,160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,876.75 : 1,215,033.75 = 1,215,033.75 : x
  2. Step 2: Convert to fraction form
    786,876.75/1,215,033.75 = 1,215,033.75/x
  3. Step 3: Cross multiply
    786,876.75x = 1,215,033.75 × 1,215,033.75
  4. Step 4: Simplify right side
    786,876.75x = 1,476,307,013,639.06
  5. Step 5: Solve for x
    x = 1,476,307,013,639.06/786,876.75
  6. Step 6: Final answer
    x = 1,876,160.42

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.