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Finding the Fourth Proportional to 941.59, 1,299.51 and 548.62

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Solution

The fourth proportional to 941.59, 1,299.51 and 548.62 is: 757.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.59 : 1,299.51 = 548.62 : x
  2. Step 2: Convert to fraction form
    941.59/1,299.51 = 548.62/x
  3. Step 3: Cross multiply
    941.59x = 1,299.51 × 548.62
  4. Step 4: Simplify right side
    941.59x = 712,933.93
  5. Step 5: Solve for x
    x = 712,933.93/941.59
  6. Step 6: Final answer
    x = 757.16

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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.