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Finding the Fourth Proportional to 1,392.53, 2,087.49 and 467.44

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Solution

The fourth proportional to 1,392.53, 2,087.49 and 467.44 is: 700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.53 : 2,087.49 = 467.44 : x
  2. Step 2: Convert to fraction form
    1,392.53/2,087.49 = 467.44/x
  3. Step 3: Cross multiply
    1,392.53x = 2,087.49 × 467.44
  4. Step 4: Simplify right side
    1,392.53x = 975,775.74
  5. Step 5: Solve for x
    x = 975,775.74/1,392.53
  6. Step 6: Final answer
    x = 700.72

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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.