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Finding the Fourth Proportional to 353,561.51, 487,905.54 and 192,413.12

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Solution

The fourth proportional to 353,561.51, 487,905.54 and 192,413.12 is: 265,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,561.51 : 487,905.54 = 192,413.12 : x
  2. Step 2: Convert to fraction form
    353,561.51/487,905.54 = 192,413.12/x
  3. Step 3: Cross multiply
    353,561.51x = 487,905.54 × 192,413.12
  4. Step 4: Simplify right side
    353,561.51x = 93,879,427,216.68
  5. Step 5: Solve for x
    x = 93,879,427,216.68/353,561.51
  6. Step 6: Final answer
    x = 265,525.02

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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.