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Finding the Third Proportional to 401,128.88 and 880,979.63

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Solution

The third proportional to 401,128.88 and 880,979.63 is: 1,934,852.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,128.88 : 880,979.63 = 880,979.63 : x
  2. Step 2: Convert to fraction form
    401,128.88/880,979.63 = 880,979.63/x
  3. Step 3: Cross multiply
    401,128.88x = 880,979.63 × 880,979.63
  4. Step 4: Simplify right side
    401,128.88x = 776,125,099,665.14
  5. Step 5: Solve for x
    x = 776,125,099,665.14/401,128.88
  6. Step 6: Final answer
    x = 1,934,852.23

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.