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Finding the Fourth Proportional to 2,936,388.80, 4,404,583.20 and 942,046.40

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Solution

The fourth proportional to 2,936,388.80, 4,404,583.20 and 942,046.40 is: 1,413,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936,388.80 : 4,404,583.20 = 942,046.40 : x
  2. Step 2: Convert to fraction form
    2,936,388.80/4,404,583.20 = 942,046.40/x
  3. Step 3: Cross multiply
    2,936,388.80x = 4,404,583.20 × 942,046.40
  4. Step 4: Simplify right side
    2,936,388.80x = 4,149,321,747,060.48
  5. Step 5: Solve for x
    x = 4,149,321,747,060.48/2,936,388.80
  6. Step 6: Final answer
    x = 1,413,069.60

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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.