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Finding the Fourth Proportional to 1,233, 1,701.60 and 701.85

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Solution

The fourth proportional to 1,233, 1,701.60 and 701.85 is: 968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233 : 1,701.60 = 701.85 : x
  2. Step 2: Convert to fraction form
    1,233/1,701.60 = 701.85/x
  3. Step 3: Cross multiply
    1,233x = 1,701.60 × 701.85
  4. Step 4: Simplify right side
    1,233x = 1,194,267.96
  5. Step 5: Solve for x
    x = 1,194,267.96/1,233
  6. Step 6: Final answer
    x = 968.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.