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Finding the Fourth Proportional to 1,892,570,940.80, 2,838,856,411.20 and 1,892,570,940.80

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Solution

The fourth proportional to 1,892,570,940.80, 2,838,856,411.20 and 1,892,570,940.80 is: 2,838,856,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892,570,940.80 : 2,838,856,411.20 = 1,892,570,940.80 : x
  2. Step 2: Convert to fraction form
    1,892,570,940.80/2,838,856,411.20 = 1,892,570,940.80/x
  3. Step 3: Cross multiply
    1,892,570,940.80x = 2,838,856,411.20 × 1,892,570,940.80
  4. Step 4: Simplify right side
    1,892,570,940.80x = 5,372,737,148,940,895,232
  5. Step 5: Solve for x
    x = 5,372,737,148,940,895,232/1,892,570,940.80
  6. Step 6: Final answer
    x = 2,838,856,411.20

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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.