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Finding the Fourth Proportional to 1,244.67, 1,867.41 and 697.92

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Solution

The fourth proportional to 1,244.67, 1,867.41 and 697.92 is: 1,047.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.67 : 1,867.41 = 697.92 : x
  2. Step 2: Convert to fraction form
    1,244.67/1,867.41 = 697.92/x
  3. Step 3: Cross multiply
    1,244.67x = 1,867.41 × 697.92
  4. Step 4: Simplify right side
    1,244.67x = 1,303,302.79
  5. Step 5: Solve for x
    x = 1,303,302.79/1,244.67
  6. Step 6: Final answer
    x = 1,047.11

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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.