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Finding the Fourth Proportional to 353,556.78, 487,909.62 and 192,413.76

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Solution

The fourth proportional to 353,556.78, 487,909.62 and 192,413.76 is: 265,531.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,556.78 : 487,909.62 = 192,413.76 : x
  2. Step 2: Convert to fraction form
    353,556.78/487,909.62 = 192,413.76/x
  3. Step 3: Cross multiply
    353,556.78x = 487,909.62 × 192,413.76
  4. Step 4: Simplify right side
    353,556.78x = 93,880,524,524.37
  5. Step 5: Solve for x
    x = 93,880,524,524.37/353,556.78
  6. Step 6: Final answer
    x = 265,531.68

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1.5x scale

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.