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Finding the Fourth Proportional to 976.03, 1,346.74 and 583.09

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Solution

The fourth proportional to 976.03, 1,346.74 and 583.09 is: 804.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.03 : 1,346.74 = 583.09 : x
  2. Step 2: Convert to fraction form
    976.03/1,346.74 = 583.09/x
  3. Step 3: Cross multiply
    976.03x = 1,346.74 × 583.09
  4. Step 4: Simplify right side
    976.03x = 785,270.63
  5. Step 5: Solve for x
    x = 785,270.63/976.03
  6. Step 6: Final answer
    x = 804.56

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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.