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Finding the Fourth Proportional to 1,794,457,416.80, 2,694,457,491.60 and 978,164,040.80

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Solution

The fourth proportional to 1,794,457,416.80, 2,694,457,491.60 and 978,164,040.80 is: 1,468,756,741.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794,457,416.80 : 2,694,457,491.60 = 978,164,040.80 : x
  2. Step 2: Convert to fraction form
    1,794,457,416.80/2,694,457,491.60 = 978,164,040.80/x
  3. Step 3: Cross multiply
    1,794,457,416.80x = 2,694,457,491.60 × 978,164,040.80
  4. Step 4: Simplify right side
    1,794,457,416.80x = 2,635,621,427,747,288,064
  5. Step 5: Solve for x
    x = 2,635,621,427,747,288,064/1,794,457,416.80
  6. Step 6: Final answer
    x = 1,468,756,741.21

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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.