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Finding the Fourth Proportional to 707.24, 975.48 and 696.44

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Solution

The fourth proportional to 707.24, 975.48 and 696.44 is: 960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.24 : 975.48 = 696.44 : x
  2. Step 2: Convert to fraction form
    707.24/975.48 = 696.44/x
  3. Step 3: Cross multiply
    707.24x = 975.48 × 696.44
  4. Step 4: Simplify right side
    707.24x = 679,363.29
  5. Step 5: Solve for x
    x = 679,363.29/707.24
  6. Step 6: Final answer
    x = 960.58

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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.