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Finding the Fourth Proportional to 1,175.07, 1,763.24 and 558.39

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Solution

The fourth proportional to 1,175.07, 1,763.24 and 558.39 is: 837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.07 : 1,763.24 = 558.39 : x
  2. Step 2: Convert to fraction form
    1,175.07/1,763.24 = 558.39/x
  3. Step 3: Cross multiply
    1,175.07x = 1,763.24 × 558.39
  4. Step 4: Simplify right side
    1,175.07x = 984,572.79
  5. Step 5: Solve for x
    x = 984,572.79/1,175.07
  6. Step 6: Final answer
    x = 837.88

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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.