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Finding the Fourth Proportional to 1,453.07, 2,005.74 and 894.48

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Solution

The fourth proportional to 1,453.07, 2,005.74 and 894.48 is: 1,234.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.07 : 2,005.74 = 894.48 : x
  2. Step 2: Convert to fraction form
    1,453.07/2,005.74 = 894.48/x
  3. Step 3: Cross multiply
    1,453.07x = 2,005.74 × 894.48
  4. Step 4: Simplify right side
    1,453.07x = 1,794,094.32
  5. Step 5: Solve for x
    x = 1,794,094.32/1,453.07
  6. Step 6: Final answer
    x = 1,234.69

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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.