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Finding the Fourth Proportional to 778,957, 1,168,318.53 and 246,408.82

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Solution

The fourth proportional to 778,957, 1,168,318.53 and 246,408.82 is: 369,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,957 : 1,168,318.53 = 246,408.82 : x
  2. Step 2: Convert to fraction form
    778,957/1,168,318.53 = 246,408.82/x
  3. Step 3: Cross multiply
    778,957x = 1,168,318.53 × 246,408.82
  4. Step 4: Simplify right side
    778,957x = 287,883,990,361.44
  5. Step 5: Solve for x
    x = 287,883,990,361.44/778,957
  6. Step 6: Final answer
    x = 369,576.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.