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Finding the Fourth Proportional to 952.91, 1,428.38 and 465.36

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Solution

The fourth proportional to 952.91, 1,428.38 and 465.36 is: 697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.91 : 1,428.38 = 465.36 : x
  2. Step 2: Convert to fraction form
    952.91/1,428.38 = 465.36/x
  3. Step 3: Cross multiply
    952.91x = 1,428.38 × 465.36
  4. Step 4: Simplify right side
    952.91x = 664,710.92
  5. Step 5: Solve for x
    x = 664,710.92/952.91
  6. Step 6: Final answer
    x = 697.56

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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.