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Finding the Fourth Proportional to 1,473.62, 2,033.60 and 810.54

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Solution

The fourth proportional to 1,473.62, 2,033.60 and 810.54 is: 1,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.62 : 2,033.60 = 810.54 : x
  2. Step 2: Convert to fraction form
    1,473.62/2,033.60 = 810.54/x
  3. Step 3: Cross multiply
    1,473.62x = 2,033.60 × 810.54
  4. Step 4: Simplify right side
    1,473.62x = 1,648,314.14
  5. Step 5: Solve for x
    x = 1,648,314.14/1,473.62
  6. Step 6: Final answer
    x = 1,118.55

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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.