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Finding the Fourth Proportional to 1,334.69, 1,840.48 and 963.44

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Solution

The fourth proportional to 1,334.69, 1,840.48 and 963.44 is: 1,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.69 : 1,840.48 = 963.44 : x
  2. Step 2: Convert to fraction form
    1,334.69/1,840.48 = 963.44/x
  3. Step 3: Cross multiply
    1,334.69x = 1,840.48 × 963.44
  4. Step 4: Simplify right side
    1,334.69x = 1,773,180.44
  5. Step 5: Solve for x
    x = 1,773,180.44/1,334.69
  6. Step 6: Final answer
    x = 1,328.54

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1.5x scale

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.