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Finding the Fourth Proportional to 1,436,597.78, 1,982,623.03 and 792,079.16

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Solution

The fourth proportional to 1,436,597.78, 1,982,623.03 and 792,079.16 is: 1,093,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,597.78 : 1,982,623.03 = 792,079.16 : x
  2. Step 2: Convert to fraction form
    1,436,597.78/1,982,623.03 = 792,079.16/x
  3. Step 3: Cross multiply
    1,436,597.78x = 1,982,623.03 × 792,079.16
  4. Step 4: Simplify right side
    1,436,597.78x = 1,570,394,372,305.74
  5. Step 5: Solve for x
    x = 1,570,394,372,305.74/1,436,597.78
  6. Step 6: Final answer
    x = 1,093,134.35

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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.