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Finding the Fourth Proportional to 1,261,984.80, 1,893,375.53 and 959,826.34

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Solution

The fourth proportional to 1,261,984.80, 1,893,375.53 and 959,826.34 is: 1,440,042.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,984.80 : 1,893,375.53 = 959,826.34 : x
  2. Step 2: Convert to fraction form
    1,261,984.80/1,893,375.53 = 959,826.34/x
  3. Step 3: Cross multiply
    1,261,984.80x = 1,893,375.53 × 959,826.34
  4. Step 4: Simplify right side
    1,261,984.80x = 1,817,311,705,205.46
  5. Step 5: Solve for x
    x = 1,817,311,705,205.46/1,261,984.80
  6. Step 6: Final answer
    x = 1,440,042.47

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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.