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Finding the Fourth Proportional to 1,364.49, 2,047.16 and 574.26

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Solution

The fourth proportional to 1,364.49, 2,047.16 and 574.26 is: 861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.49 : 2,047.16 = 574.26 : x
  2. Step 2: Convert to fraction form
    1,364.49/2,047.16 = 574.26/x
  3. Step 3: Cross multiply
    1,364.49x = 2,047.16 × 574.26
  4. Step 4: Simplify right side
    1,364.49x = 1,175,612.33
  5. Step 5: Solve for x
    x = 1,175,612.33/1,364.49
  6. Step 6: Final answer
    x = 861.58

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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.