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Finding the Fourth Proportional to 353,413.60, 487,786.80 and 232,565.92

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Solution

The fourth proportional to 353,413.60, 487,786.80 and 232,565.92 is: 320,991.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,413.60 : 487,786.80 = 232,565.92 : x
  2. Step 2: Convert to fraction form
    353,413.60/487,786.80 = 232,565.92/x
  3. Step 3: Cross multiply
    353,413.60x = 487,786.80 × 232,565.92
  4. Step 4: Simplify right side
    353,413.60x = 113,442,585,905.86
  5. Step 5: Solve for x
    x = 113,442,585,905.86/353,413.60
  6. Step 6: Final answer
    x = 320,991.00

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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.