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Finding the Fourth Proportional to 1,189,179, 1,641,067.02 and 712,251

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Solution

The fourth proportional to 1,189,179, 1,641,067.02 and 712,251 is: 982,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,179 : 1,641,067.02 = 712,251 : x
  2. Step 2: Convert to fraction form
    1,189,179/1,641,067.02 = 712,251/x
  3. Step 3: Cross multiply
    1,189,179x = 1,641,067.02 × 712,251
  4. Step 4: Simplify right side
    1,189,179x = 1,168,851,626,062.02
  5. Step 5: Solve for x
    x = 1,168,851,626,062.02/1,189,179
  6. Step 6: Final answer
    x = 982,906.38

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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.