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Finding the Fourth Proportional to 976.14, 1,347.08 and 534.04

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Solution

The fourth proportional to 976.14, 1,347.08 and 534.04 is: 736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.14 : 1,347.08 = 534.04 : x
  2. Step 2: Convert to fraction form
    976.14/1,347.08 = 534.04/x
  3. Step 3: Cross multiply
    976.14x = 1,347.08 × 534.04
  4. Step 4: Simplify right side
    976.14x = 719,399.15
  5. Step 5: Solve for x
    x = 719,399.15/976.14
  6. Step 6: Final answer
    x = 736.98

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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.