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Finding the Fourth Proportional to 2,434.78, 3,651.66 and 703

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Solution

The fourth proportional to 2,434.78, 3,651.66 and 703 is: 1,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,434.78 : 3,651.66 = 703 : x
  2. Step 2: Convert to fraction form
    2,434.78/3,651.66 = 703/x
  3. Step 3: Cross multiply
    2,434.78x = 3,651.66 × 703
  4. Step 4: Simplify right side
    2,434.78x = 2,567,116.98
  5. Step 5: Solve for x
    x = 2,567,116.98/2,434.78
  6. Step 6: Final answer
    x = 1,054.35

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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.