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Finding the Fourth Proportional to 1,158.66, 1,736.10 and 884.46

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Solution

The fourth proportional to 1,158.66, 1,736.10 and 884.46 is: 1,325.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.66 : 1,736.10 = 884.46 : x
  2. Step 2: Convert to fraction form
    1,158.66/1,736.10 = 884.46/x
  3. Step 3: Cross multiply
    1,158.66x = 1,736.10 × 884.46
  4. Step 4: Simplify right side
    1,158.66x = 1,535,511.01
  5. Step 5: Solve for x
    x = 1,535,511.01/1,158.66
  6. Step 6: Final answer
    x = 1,325.25

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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.