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Finding the Fourth Proportional to 1,136.46, 1,704.60 and 366.90

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Solution

The fourth proportional to 1,136.46, 1,704.60 and 366.90 is: 550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.46 : 1,704.60 = 366.90 : x
  2. Step 2: Convert to fraction form
    1,136.46/1,704.60 = 366.90/x
  3. Step 3: Cross multiply
    1,136.46x = 1,704.60 × 366.90
  4. Step 4: Simplify right side
    1,136.46x = 625,417.74
  5. Step 5: Solve for x
    x = 625,417.74/1,136.46
  6. Step 6: Final answer
    x = 550.32

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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.