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Finding the Fourth Proportional to 1,173.89, 1,760.85 and 352.11

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Solution

The fourth proportional to 1,173.89, 1,760.85 and 352.11 is: 528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.89 : 1,760.85 = 352.11 : x
  2. Step 2: Convert to fraction form
    1,173.89/1,760.85 = 352.11/x
  3. Step 3: Cross multiply
    1,173.89x = 1,760.85 × 352.11
  4. Step 4: Simplify right side
    1,173.89x = 620,017.02
  5. Step 5: Solve for x
    x = 620,017.02/1,173.89
  6. Step 6: Final answer
    x = 528.17

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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.