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Finding the Fourth Proportional to 1,031.66, 1,546.77 and 382.22

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Solution

The fourth proportional to 1,031.66, 1,546.77 and 382.22 is: 573.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.66 : 1,546.77 = 382.22 : x
  2. Step 2: Convert to fraction form
    1,031.66/1,546.77 = 382.22/x
  3. Step 3: Cross multiply
    1,031.66x = 1,546.77 × 382.22
  4. Step 4: Simplify right side
    1,031.66x = 591,206.43
  5. Step 5: Solve for x
    x = 591,206.43/1,031.66
  6. Step 6: Final answer
    x = 573.06

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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.