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Finding the Fourth Proportional to 1,178,735.98, 1,769,340.69 and 1,044,657.90

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Solution

The fourth proportional to 1,178,735.98, 1,769,340.69 and 1,044,657.90 is: 1,568,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,735.98 : 1,769,340.69 = 1,044,657.90 : x
  2. Step 2: Convert to fraction form
    1,178,735.98/1,769,340.69 = 1,044,657.90/x
  3. Step 3: Cross multiply
    1,178,735.98x = 1,769,340.69 × 1,044,657.90
  4. Step 4: Simplify right side
    1,178,735.98x = 1,848,355,729,599.95
  5. Step 5: Solve for x
    x = 1,848,355,729,599.95/1,178,735.98
  6. Step 6: Final answer
    x = 1,568,082.90

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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.