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Finding the Fourth Proportional to 952.25, 1,428.38 and 375.13

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Solution

The fourth proportional to 952.25, 1,428.38 and 375.13 is: 562.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.25 : 1,428.38 = 375.13 : x
  2. Step 2: Convert to fraction form
    952.25/1,428.38 = 375.13/x
  3. Step 3: Cross multiply
    952.25x = 1,428.38 × 375.13
  4. Step 4: Simplify right side
    952.25x = 535,819.17
  5. Step 5: Solve for x
    x = 535,819.17/952.25
  6. Step 6: Final answer
    x = 562.69

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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.