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Finding the Fourth Proportional to 1,728.69, 2,593.41 and 558.76

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Solution

The fourth proportional to 1,728.69, 2,593.41 and 558.76 is: 838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.69 : 2,593.41 = 558.76 : x
  2. Step 2: Convert to fraction form
    1,728.69/2,593.41 = 558.76/x
  3. Step 3: Cross multiply
    1,728.69x = 2,593.41 × 558.76
  4. Step 4: Simplify right side
    1,728.69x = 1,449,093.77
  5. Step 5: Solve for x
    x = 1,449,093.77/1,728.69
  6. Step 6: Final answer
    x = 838.26

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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.