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Finding the Fourth Proportional to 1,136.19, 1,704.24 and 356.07

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Solution

The fourth proportional to 1,136.19, 1,704.24 and 356.07 is: 534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.19 : 1,704.24 = 356.07 : x
  2. Step 2: Convert to fraction form
    1,136.19/1,704.24 = 356.07/x
  3. Step 3: Cross multiply
    1,136.19x = 1,704.24 × 356.07
  4. Step 4: Simplify right side
    1,136.19x = 606,830.33
  5. Step 5: Solve for x
    x = 606,830.33/1,136.19
  6. Step 6: Final answer
    x = 534.09

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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.