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Finding the Fourth Proportional to 1,176.98, 1,765.67 and 484.02

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Solution

The fourth proportional to 1,176.98, 1,765.67 and 484.02 is: 726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.98 : 1,765.67 = 484.02 : x
  2. Step 2: Convert to fraction form
    1,176.98/1,765.67 = 484.02/x
  3. Step 3: Cross multiply
    1,176.98x = 1,765.67 × 484.02
  4. Step 4: Simplify right side
    1,176.98x = 854,617.17
  5. Step 5: Solve for x
    x = 854,617.17/1,176.98
  6. Step 6: Final answer
    x = 726.11

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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.