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Finding the Fourth Proportional to 355,148.62, 489,108.74 and 332,354.27

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Solution

The fourth proportional to 355,148.62, 489,108.74 and 332,354.27 is: 457,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,148.62 : 489,108.74 = 332,354.27 : x
  2. Step 2: Convert to fraction form
    355,148.62/489,108.74 = 332,354.27/x
  3. Step 3: Cross multiply
    355,148.62x = 489,108.74 × 332,354.27
  4. Step 4: Simplify right side
    355,148.62x = 162,557,377,794.32
  5. Step 5: Solve for x
    x = 162,557,377,794.32/355,148.62
  6. Step 6: Final answer
    x = 457,716.49

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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.