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Finding the Fourth Proportional to 550,626.15, 825,611.16 and 190,678.75

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Solution

The fourth proportional to 550,626.15, 825,611.16 and 190,678.75 is: 285,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,626.15 : 825,611.16 = 190,678.75 : x
  2. Step 2: Convert to fraction form
    550,626.15/825,611.16 = 190,678.75/x
  3. Step 3: Cross multiply
    550,626.15x = 825,611.16 × 190,678.75
  4. Step 4: Simplify right side
    550,626.15x = 157,426,503,974.85
  5. Step 5: Solve for x
    x = 157,426,503,974.85/550,626.15
  6. Step 6: Final answer
    x = 285,904.52

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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.