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Finding the Fourth Proportional to 1,694,518.80, 2,540,976.30 and 984,764.40

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Solution

The fourth proportional to 1,694,518.80, 2,540,976.30 and 984,764.40 is: 1,476,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694,518.80 : 2,540,976.30 = 984,764.40 : x
  2. Step 2: Convert to fraction form
    1,694,518.80/2,540,976.30 = 984,764.40/x
  3. Step 3: Cross multiply
    1,694,518.80x = 2,540,976.30 × 984,764.40
  4. Step 4: Simplify right side
    1,694,518.80x = 2,502,263,001,483.72
  5. Step 5: Solve for x
    x = 2,502,263,001,483.72/1,694,518.80
  6. Step 6: Final answer
    x = 1,476,680.58

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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.