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Finding the Fourth Proportional to 956.54, 1,319.65 and 583.49

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Solution

The fourth proportional to 956.54, 1,319.65 and 583.49 is: 804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.54 : 1,319.65 = 583.49 : x
  2. Step 2: Convert to fraction form
    956.54/1,319.65 = 583.49/x
  3. Step 3: Cross multiply
    956.54x = 1,319.65 × 583.49
  4. Step 4: Simplify right side
    956.54x = 770,004.42
  5. Step 5: Solve for x
    x = 770,004.42/956.54
  6. Step 6: Final answer
    x = 804.99

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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.