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Finding the Fourth Proportional to 984,370.60, 1,476,555.90 and 978,149.80

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Solution

The fourth proportional to 984,370.60, 1,476,555.90 and 978,149.80 is: 1,467,224.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,370.60 : 1,476,555.90 = 978,149.80 : x
  2. Step 2: Convert to fraction form
    984,370.60/1,476,555.90 = 978,149.80/x
  3. Step 3: Cross multiply
    984,370.60x = 1,476,555.90 × 978,149.80
  4. Step 4: Simplify right side
    984,370.60x = 1,444,292,858,273.82
  5. Step 5: Solve for x
    x = 1,444,292,858,273.82/984,370.60
  6. Step 6: Final answer
    x = 1,467,224.70

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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.