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Finding the Fourth Proportional to 1,738.73, 2,608.60 and 814.93

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Solution

The fourth proportional to 1,738.73, 2,608.60 and 814.93 is: 1,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.73 : 2,608.60 = 814.93 : x
  2. Step 2: Convert to fraction form
    1,738.73/2,608.60 = 814.93/x
  3. Step 3: Cross multiply
    1,738.73x = 2,608.60 × 814.93
  4. Step 4: Simplify right side
    1,738.73x = 2,125,826.40
  5. Step 5: Solve for x
    x = 2,125,826.40/1,738.73
  6. Step 6: Final answer
    x = 1,222.63

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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.