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Finding the Fourth Proportional to 852.25, 1,175.65 and 572.01

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Solution

The fourth proportional to 852.25, 1,175.65 and 572.01 is: 789.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.25 : 1,175.65 = 572.01 : x
  2. Step 2: Convert to fraction form
    852.25/1,175.65 = 572.01/x
  3. Step 3: Cross multiply
    852.25x = 1,175.65 × 572.01
  4. Step 4: Simplify right side
    852.25x = 672,483.56
  5. Step 5: Solve for x
    x = 672,483.56/852.25
  6. Step 6: Final answer
    x = 789.07

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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.