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Finding the Fourth Proportional to 1,453.20, 2,005.44 and 893.98

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Solution

The fourth proportional to 1,453.20, 2,005.44 and 893.98 is: 1,233.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.20 : 2,005.44 = 893.98 : x
  2. Step 2: Convert to fraction form
    1,453.20/2,005.44 = 893.98/x
  3. Step 3: Cross multiply
    1,453.20x = 2,005.44 × 893.98
  4. Step 4: Simplify right side
    1,453.20x = 1,792,818.78
  5. Step 5: Solve for x
    x = 1,792,818.78/1,453.20
  6. Step 6: Final answer
    x = 1,233.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.