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Finding the Fourth Proportional to 364,012.20, 545,799.60 and 186,865.20

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Solution

The fourth proportional to 364,012.20, 545,799.60 and 186,865.20 is: 280,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,012.20 : 545,799.60 = 186,865.20 : x
  2. Step 2: Convert to fraction form
    364,012.20/545,799.60 = 186,865.20/x
  3. Step 3: Cross multiply
    364,012.20x = 545,799.60 × 186,865.20
  4. Step 4: Simplify right side
    364,012.20x = 101,990,951,413.92
  5. Step 5: Solve for x
    x = 101,990,951,413.92/364,012.20
  6. Step 6: Final answer
    x = 280,185.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.