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Finding the Third Proportional to 431,175.19 and 907,042.13

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Solution

The third proportional to 431,175.19 and 907,042.13 is: 1,908,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,175.19 : 907,042.13 = 907,042.13 : x
  2. Step 2: Convert to fraction form
    431,175.19/907,042.13 = 907,042.13/x
  3. Step 3: Cross multiply
    431,175.19x = 907,042.13 × 907,042.13
  4. Step 4: Simplify right side
    431,175.19x = 822,725,416,524.52
  5. Step 5: Solve for x
    x = 822,725,416,524.52/431,175.19
  6. Step 6: Final answer
    x = 1,908,100.10

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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.