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Finding the Fourth Proportional to 1,144.01, 1,715.49 and 494.25

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Solution

The fourth proportional to 1,144.01, 1,715.49 and 494.25 is: 741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.01 : 1,715.49 = 494.25 : x
  2. Step 2: Convert to fraction form
    1,144.01/1,715.49 = 494.25/x
  3. Step 3: Cross multiply
    1,144.01x = 1,715.49 × 494.25
  4. Step 4: Simplify right side
    1,144.01x = 847,880.93
  5. Step 5: Solve for x
    x = 847,880.93/1,144.01
  6. Step 6: Final answer
    x = 741.15

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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.