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Finding the Fourth Proportional to 1,764.66, 2,647 and 532.08

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Solution

The fourth proportional to 1,764.66, 2,647 and 532.08 is: 798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.66 : 2,647 = 532.08 : x
  2. Step 2: Convert to fraction form
    1,764.66/2,647 = 532.08/x
  3. Step 3: Cross multiply
    1,764.66x = 2,647 × 532.08
  4. Step 4: Simplify right side
    1,764.66x = 1,408,415.76
  5. Step 5: Solve for x
    x = 1,408,415.76/1,764.66
  6. Step 6: Final answer
    x = 798.12

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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.