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Finding the Fourth Proportional to 1,641,867, 2,265,755 and 916,727.06

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Solution

The fourth proportional to 1,641,867, 2,265,755 and 916,727.06 is: 1,265,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641,867 : 2,265,755 = 916,727.06 : x
  2. Step 2: Convert to fraction form
    1,641,867/2,265,755 = 916,727.06/x
  3. Step 3: Cross multiply
    1,641,867x = 2,265,755 × 916,727.06
  4. Step 4: Simplify right side
    1,641,867x = 2,077,078,919,830.30
  5. Step 5: Solve for x
    x = 2,077,078,919,830.30/1,641,867
  6. Step 6: Final answer
    x = 1,265,071.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.