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Finding the Third Proportional to 853,531 and 1,321,518

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Solution

The third proportional to 853,531 and 1,321,518 is: 2,046,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,531 : 1,321,518 = 1,321,518 : x
  2. Step 2: Convert to fraction form
    853,531/1,321,518 = 1,321,518/x
  3. Step 3: Cross multiply
    853,531x = 1,321,518 × 1,321,518
  4. Step 4: Simplify right side
    853,531x = 1,746,409,824,324
  5. Step 5: Solve for x
    x = 1,746,409,824,324/853,531
  6. Step 6: Final answer
    x = 2,046,100.05

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.