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Finding the Third Proportional to 423,680.63 and 891,010.13

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Solution

The third proportional to 423,680.63 and 891,010.13 is: 1,873,814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,680.63 : 891,010.13 = 891,010.13 : x
  2. Step 2: Convert to fraction form
    423,680.63/891,010.13 = 891,010.13/x
  3. Step 3: Cross multiply
    423,680.63x = 891,010.13 × 891,010.13
  4. Step 4: Simplify right side
    423,680.63x = 793,899,042,852.52
  5. Step 5: Solve for x
    x = 793,899,042,852.52/423,680.63
  6. Step 6: Final answer
    x = 1,873,814.84

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.