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Finding the Fourth Proportional to 366,964.70, 550,447.05 and 254,990.30

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Solution

The fourth proportional to 366,964.70, 550,447.05 and 254,990.30 is: 382,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,964.70 : 550,447.05 = 254,990.30 : x
  2. Step 2: Convert to fraction form
    366,964.70/550,447.05 = 254,990.30/x
  3. Step 3: Cross multiply
    366,964.70x = 550,447.05 × 254,990.30
  4. Step 4: Simplify right side
    366,964.70x = 140,358,658,413.62
  5. Step 5: Solve for x
    x = 140,358,658,413.62/366,964.70
  6. Step 6: Final answer
    x = 382,485.45

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Similar ratio
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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.