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Finding the Fourth Proportional to 696.10, 960.83 and 416.53

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Solution

The fourth proportional to 696.10, 960.83 and 416.53 is: 574.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.10 : 960.83 = 416.53 : x
  2. Step 2: Convert to fraction form
    696.10/960.83 = 416.53/x
  3. Step 3: Cross multiply
    696.10x = 960.83 × 416.53
  4. Step 4: Simplify right side
    696.10x = 400,214.52
  5. Step 5: Solve for x
    x = 400,214.52/696.10
  6. Step 6: Final answer
    x = 574.94

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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.