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Finding the Fourth Proportional to 2,531.98, 3,798.65 and 888.54

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Solution

The fourth proportional to 2,531.98, 3,798.65 and 888.54 is: 1,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.98 : 3,798.65 = 888.54 : x
  2. Step 2: Convert to fraction form
    2,531.98/3,798.65 = 888.54/x
  3. Step 3: Cross multiply
    2,531.98x = 3,798.65 × 888.54
  4. Step 4: Simplify right side
    2,531.98x = 3,375,252.47
  5. Step 5: Solve for x
    x = 3,375,252.47/2,531.98
  6. Step 6: Final answer
    x = 1,333.05

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1.5x scale

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.