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Finding the Fourth Proportional to 1,496.42, 2,242.53 and 674.40

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Solution

The fourth proportional to 1,496.42, 2,242.53 and 674.40 is: 1,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.42 : 2,242.53 = 674.40 : x
  2. Step 2: Convert to fraction form
    1,496.42/2,242.53 = 674.40/x
  3. Step 3: Cross multiply
    1,496.42x = 2,242.53 × 674.40
  4. Step 4: Simplify right side
    1,496.42x = 1,512,362.23
  5. Step 5: Solve for x
    x = 1,512,362.23/1,496.42
  6. Step 6: Final answer
    x = 1,010.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.