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Finding the Fourth Proportional to 1,175.94, 1,763.31 and 395.67

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Solution

The fourth proportional to 1,175.94, 1,763.31 and 395.67 is: 593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.94 : 1,763.31 = 395.67 : x
  2. Step 2: Convert to fraction form
    1,175.94/1,763.31 = 395.67/x
  3. Step 3: Cross multiply
    1,175.94x = 1,763.31 × 395.67
  4. Step 4: Simplify right side
    1,175.94x = 697,688.87
  5. Step 5: Solve for x
    x = 697,688.87/1,175.94
  6. Step 6: Final answer
    x = 593.30

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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.