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Finding the Fourth Proportional to 1,233.12, 1,701.68 and 735.89

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Solution

The fourth proportional to 1,233.12, 1,701.68 and 735.89 is: 1,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.12 : 1,701.68 = 735.89 : x
  2. Step 2: Convert to fraction form
    1,233.12/1,701.68 = 735.89/x
  3. Step 3: Cross multiply
    1,233.12x = 1,701.68 × 735.89
  4. Step 4: Simplify right side
    1,233.12x = 1,252,243.32
  5. Step 5: Solve for x
    x = 1,252,243.32/1,233.12
  6. Step 6: Final answer
    x = 1,015.50

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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.