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Finding the Fourth Proportional to 1,031.88, 1,548.26 and 382.44

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Solution

The fourth proportional to 1,031.88, 1,548.26 and 382.44 is: 573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.88 : 1,548.26 = 382.44 : x
  2. Step 2: Convert to fraction form
    1,031.88/1,548.26 = 382.44/x
  3. Step 3: Cross multiply
    1,031.88x = 1,548.26 × 382.44
  4. Step 4: Simplify right side
    1,031.88x = 592,116.55
  5. Step 5: Solve for x
    x = 592,116.55/1,031.88
  6. Step 6: Final answer
    x = 573.82

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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.