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Finding the Fourth Proportional to 952.90, 1,425.39 and 894.58

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Solution

The fourth proportional to 952.90, 1,425.39 and 894.58 is: 1,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.90 : 1,425.39 = 894.58 : x
  2. Step 2: Convert to fraction form
    952.90/1,425.39 = 894.58/x
  3. Step 3: Cross multiply
    952.90x = 1,425.39 × 894.58
  4. Step 4: Simplify right side
    952.90x = 1,275,125.39
  5. Step 5: Solve for x
    x = 1,275,125.39/952.90
  6. Step 6: Final answer
    x = 1,338.15

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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.