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Finding the Third Proportional to 915,542.63 and 1,988,701.13

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Solution

The third proportional to 915,542.63 and 1,988,701.13 is: 4,319,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,542.63 : 1,988,701.13 = 1,988,701.13 : x
  2. Step 2: Convert to fraction form
    915,542.63/1,988,701.13 = 1,988,701.13/x
  3. Step 3: Cross multiply
    915,542.63x = 1,988,701.13 × 1,988,701.13
  4. Step 4: Simplify right side
    915,542.63x = 3,954,932,164,576.27
  5. Step 5: Solve for x
    x = 3,954,932,164,576.27/915,542.63
  6. Step 6: Final answer
    x = 4,319,768.47

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.