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Finding the Third Proportional to 858,476.81 and 1,864,576.13

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Solution

The third proportional to 858,476.81 and 1,864,576.13 is: 4,049,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,476.81 : 1,864,576.13 = 1,864,576.13 : x
  2. Step 2: Convert to fraction form
    858,476.81/1,864,576.13 = 1,864,576.13/x
  3. Step 3: Cross multiply
    858,476.81x = 1,864,576.13 × 1,864,576.13
  4. Step 4: Simplify right side
    858,476.81x = 3,476,644,125,920.02
  5. Step 5: Solve for x
    x = 3,476,644,125,920.02/858,476.81
  6. Step 6: Final answer
    x = 4,049,782.21

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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.