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Finding the Fourth Proportional to 852.90, 1,173.99 and 752.96

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Solution

The fourth proportional to 852.90, 1,173.99 and 752.96 is: 1,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.90 : 1,173.99 = 752.96 : x
  2. Step 2: Convert to fraction form
    852.90/1,173.99 = 752.96/x
  3. Step 3: Cross multiply
    852.90x = 1,173.99 × 752.96
  4. Step 4: Simplify right side
    852.90x = 883,973.27
  5. Step 5: Solve for x
    x = 883,973.27/852.90
  6. Step 6: Final answer
    x = 1,036.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.