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Finding the Fourth Proportional to 1,175.42, 1,763.70 and 482.29

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Solution

The fourth proportional to 1,175.42, 1,763.70 and 482.29 is: 723.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.42 : 1,763.70 = 482.29 : x
  2. Step 2: Convert to fraction form
    1,175.42/1,763.70 = 482.29/x
  3. Step 3: Cross multiply
    1,175.42x = 1,763.70 × 482.29
  4. Step 4: Simplify right side
    1,175.42x = 850,615.27
  5. Step 5: Solve for x
    x = 850,615.27/1,175.42
  6. Step 6: Final answer
    x = 723.67

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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.