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Finding the Fourth Proportional to 1,164.88, 1,747.16 and 299.14

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Solution

The fourth proportional to 1,164.88, 1,747.16 and 299.14 is: 448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.88 : 1,747.16 = 299.14 : x
  2. Step 2: Convert to fraction form
    1,164.88/1,747.16 = 299.14/x
  3. Step 3: Cross multiply
    1,164.88x = 1,747.16 × 299.14
  4. Step 4: Simplify right side
    1,164.88x = 522,645.44
  5. Step 5: Solve for x
    x = 522,645.44/1,164.88
  6. Step 6: Final answer
    x = 448.67

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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.