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Finding the Fourth Proportional to 4,874,691.79, 6,734,081.75 and 3,893,342.39

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Solution

The fourth proportional to 4,874,691.79, 6,734,081.75 and 3,893,342.39 is: 5,378,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874,691.79 : 6,734,081.75 = 3,893,342.39 : x
  2. Step 2: Convert to fraction form
    4,874,691.79/6,734,081.75 = 3,893,342.39/x
  3. Step 3: Cross multiply
    4,874,691.79x = 6,734,081.75 × 3,893,342.39
  4. Step 4: Simplify right side
    4,874,691.79x = 26,218,085,881,863.26
  5. Step 5: Solve for x
    x = 26,218,085,881,863.26/4,874,691.79
  6. Step 6: Final answer
    x = 5,378,408.94

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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.