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Finding the Fourth Proportional to 1,964.07, 2,943.84 and 1,040.67

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Solution

The fourth proportional to 1,964.07, 2,943.84 and 1,040.67 is: 1,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.07 : 2,943.84 = 1,040.67 : x
  2. Step 2: Convert to fraction form
    1,964.07/2,943.84 = 1,040.67/x
  3. Step 3: Cross multiply
    1,964.07x = 2,943.84 × 1,040.67
  4. Step 4: Simplify right side
    1,964.07x = 3,063,565.97
  5. Step 5: Solve for x
    x = 3,063,565.97/1,964.07
  6. Step 6: Final answer
    x = 1,559.80

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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.