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Finding the Fourth Proportional to 1,728,888,418.94, 2,385,866,787.89 and 935,934,372.41

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Solution

The fourth proportional to 1,728,888,418.94, 2,385,866,787.89 and 935,934,372.41 is: 1,291,589,850.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,888,418.94 : 2,385,866,787.89 = 935,934,372.41 : x
  2. Step 2: Convert to fraction form
    1,728,888,418.94/2,385,866,787.89 = 935,934,372.41/x
  3. Step 3: Cross multiply
    1,728,888,418.94x = 2,385,866,787.89 × 935,934,372.41
  4. Step 4: Simplify right side
    1,728,888,418.94x = 2,233,014,734,761,080,832
  5. Step 5: Solve for x
    x = 2,233,014,734,761,080,832/1,728,888,418.94
  6. Step 6: Final answer
    x = 1,291,589,850.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.