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Finding the Fourth Proportional to 1,164.84, 1,745.77 and 547.18

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Solution

The fourth proportional to 1,164.84, 1,745.77 and 547.18 is: 820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.84 : 1,745.77 = 547.18 : x
  2. Step 2: Convert to fraction form
    1,164.84/1,745.77 = 547.18/x
  3. Step 3: Cross multiply
    1,164.84x = 1,745.77 × 547.18
  4. Step 4: Simplify right side
    1,164.84x = 955,250.43
  5. Step 5: Solve for x
    x = 955,250.43/1,164.84
  6. Step 6: Final answer
    x = 820.07

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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.