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Finding the Fourth Proportional to 2,342.32, 3,514.00 and 698.80

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Solution

The fourth proportional to 2,342.32, 3,514.00 and 698.80 is: 1,048.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.32 : 3,514.00 = 698.80 : x
  2. Step 2: Convert to fraction form
    2,342.32/3,514.00 = 698.80/x
  3. Step 3: Cross multiply
    2,342.32x = 3,514.00 × 698.80
  4. Step 4: Simplify right side
    2,342.32x = 2,455,584.95
  5. Step 5: Solve for x
    x = 2,455,584.95/2,342.32
  6. Step 6: Final answer
    x = 1,048.36

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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.