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Finding the Fourth Proportional to 1,170.99, 1,756.93 and 349.27

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Solution

The fourth proportional to 1,170.99, 1,756.93 and 349.27 is: 524.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.99 : 1,756.93 = 349.27 : x
  2. Step 2: Convert to fraction form
    1,170.99/1,756.93 = 349.27/x
  3. Step 3: Cross multiply
    1,170.99x = 1,756.93 × 349.27
  4. Step 4: Simplify right side
    1,170.99x = 613,642.94
  5. Step 5: Solve for x
    x = 613,642.94/1,170.99
  6. Step 6: Final answer
    x = 524.04

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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.