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Finding the Fourth Proportional to 4,879,994.80, 7,314,743.40 and 1,846,188.40

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Solution

The fourth proportional to 4,879,994.80, 7,314,743.40 and 1,846,188.40 is: 2,767,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879,994.80 : 7,314,743.40 = 1,846,188.40 : x
  2. Step 2: Convert to fraction form
    4,879,994.80/7,314,743.40 = 1,846,188.40/x
  3. Step 3: Cross multiply
    4,879,994.80x = 7,314,743.40 × 1,846,188.40
  4. Step 4: Simplify right side
    4,879,994.80x = 13,504,394,414,056.56
  5. Step 5: Solve for x
    x = 13,504,394,414,056.56/4,879,994.80
  6. Step 6: Final answer
    x = 2,767,296.89

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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.