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Finding the Fourth Proportional to 1,476.74, 2,037.45 and 855.62

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Solution

The fourth proportional to 1,476.74, 2,037.45 and 855.62 is: 1,180.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.74 : 2,037.45 = 855.62 : x
  2. Step 2: Convert to fraction form
    1,476.74/2,037.45 = 855.62/x
  3. Step 3: Cross multiply
    1,476.74x = 2,037.45 × 855.62
  4. Step 4: Simplify right side
    1,476.74x = 1,743,282.97
  5. Step 5: Solve for x
    x = 1,743,282.97/1,476.74
  6. Step 6: Final answer
    x = 1,180.49

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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.