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Finding the Fourth Proportional to 3,258,698.80, 4,889,797.80 and 1,365,631.60

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Solution

The fourth proportional to 3,258,698.80, 4,889,797.80 and 1,365,631.60 is: 2,049,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258,698.80 : 4,889,797.80 = 1,365,631.60 : x
  2. Step 2: Convert to fraction form
    3,258,698.80/4,889,797.80 = 1,365,631.60/x
  3. Step 3: Cross multiply
    3,258,698.80x = 4,889,797.80 × 1,365,631.60
  4. Step 4: Simplify right side
    3,258,698.80x = 6,677,662,393,290.48
  5. Step 5: Solve for x
    x = 6,677,662,393,290.48/3,258,698.80
  6. Step 6: Final answer
    x = 2,049,180.61

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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.