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Finding the Fourth Proportional to 976.16, 1,346.65 and 583.04

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Solution

The fourth proportional to 976.16, 1,346.65 and 583.04 is: 804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.16 : 1,346.65 = 583.04 : x
  2. Step 2: Convert to fraction form
    976.16/1,346.65 = 583.04/x
  3. Step 3: Cross multiply
    976.16x = 1,346.65 × 583.04
  4. Step 4: Simplify right side
    976.16x = 785,150.82
  5. Step 5: Solve for x
    x = 785,150.82/976.16
  6. Step 6: Final answer
    x = 804.33

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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.