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Finding the Fourth Proportional to 734.15, 1,014.32 and 548.26

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Solution

The fourth proportional to 734.15, 1,014.32 and 548.26 is: 757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.15 : 1,014.32 = 548.26 : x
  2. Step 2: Convert to fraction form
    734.15/1,014.32 = 548.26/x
  3. Step 3: Cross multiply
    734.15x = 1,014.32 × 548.26
  4. Step 4: Simplify right side
    734.15x = 556,109.92
  5. Step 5: Solve for x
    x = 556,109.92/734.15
  6. Step 6: Final answer
    x = 757.49

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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.