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Finding the Fourth Proportional to 1,792,629, 2,473,879.86 and 987,864.84

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Solution

The fourth proportional to 1,792,629, 2,473,879.86 and 987,864.84 is: 1,363,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,629 : 2,473,879.86 = 987,864.84 : x
  2. Step 2: Convert to fraction form
    1,792,629/2,473,879.86 = 987,864.84/x
  3. Step 3: Cross multiply
    1,792,629x = 2,473,879.86 × 987,864.84
  4. Step 4: Simplify right side
    1,792,629x = 2,443,858,932,078.12
  5. Step 5: Solve for x
    x = 2,443,858,932,078.12/1,792,629
  6. Step 6: Final answer
    x = 1,363,282.05

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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.