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Finding the Fourth Proportional to 976.02, 1,346.86 and 582.98

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Solution

The fourth proportional to 976.02, 1,346.86 and 582.98 is: 804.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.02 : 1,346.86 = 582.98 : x
  2. Step 2: Convert to fraction form
    976.02/1,346.86 = 582.98/x
  3. Step 3: Cross multiply
    976.02x = 1,346.86 × 582.98
  4. Step 4: Simplify right side
    976.02x = 785,192.44
  5. Step 5: Solve for x
    x = 785,192.44/976.02
  6. Step 6: Final answer
    x = 804.48

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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.