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Finding the Fourth Proportional to 352,413.63, 486,335.48 and 191,270.61

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Solution

The fourth proportional to 352,413.63, 486,335.48 and 191,270.61 is: 263,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,413.63 : 486,335.48 = 191,270.61 : x
  2. Step 2: Convert to fraction form
    352,413.63/486,335.48 = 191,270.61/x
  3. Step 3: Cross multiply
    352,413.63x = 486,335.48 × 191,270.61
  4. Step 4: Simplify right side
    352,413.63x = 93,021,682,967.89
  5. Step 5: Solve for x
    x = 93,021,682,967.89/352,413.63
  6. Step 6: Final answer
    x = 263,955.97

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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.