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Finding the Fourth Proportional to 1,136.24, 1,704.32 and 356.24

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Solution

The fourth proportional to 1,136.24, 1,704.32 and 356.24 is: 534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.24 : 1,704.32 = 356.24 : x
  2. Step 2: Convert to fraction form
    1,136.24/1,704.32 = 356.24/x
  3. Step 3: Cross multiply
    1,136.24x = 1,704.32 × 356.24
  4. Step 4: Simplify right side
    1,136.24x = 607,146.96
  5. Step 5: Solve for x
    x = 607,146.96/1,136.24
  6. Step 6: Final answer
    x = 534.35

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1.5x scale

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.