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Finding the Fourth Proportional to 2,239.76, 3,359.36 and 700.76

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Solution

The fourth proportional to 2,239.76, 3,359.36 and 700.76 is: 1,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.76 : 3,359.36 = 700.76 : x
  2. Step 2: Convert to fraction form
    2,239.76/3,359.36 = 700.76/x
  3. Step 3: Cross multiply
    2,239.76x = 3,359.36 × 700.76
  4. Step 4: Simplify right side
    2,239.76x = 2,354,105.11
  5. Step 5: Solve for x
    x = 2,354,105.11/2,239.76
  6. Step 6: Final answer
    x = 1,051.05

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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.