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Finding the Third Proportional to 699,120 and 1,531,629

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Solution

The third proportional to 699,120 and 1,531,629 is: 3,355,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,120 : 1,531,629 = 1,531,629 : x
  2. Step 2: Convert to fraction form
    699,120/1,531,629 = 1,531,629/x
  3. Step 3: Cross multiply
    699,120x = 1,531,629 × 1,531,629
  4. Step 4: Simplify right side
    699,120x = 2,345,887,393,641
  5. Step 5: Solve for x
    x = 2,345,887,393,641/699,120
  6. Step 6: Final answer
    x = 3,355,486.03

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.