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Finding the Fourth Proportional to 852.24, 1,176.07 and 556.95

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Solution

The fourth proportional to 852.24, 1,176.07 and 556.95 is: 768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.24 : 1,176.07 = 556.95 : x
  2. Step 2: Convert to fraction form
    852.24/1,176.07 = 556.95/x
  3. Step 3: Cross multiply
    852.24x = 1,176.07 × 556.95
  4. Step 4: Simplify right side
    852.24x = 655,012.19
  5. Step 5: Solve for x
    x = 655,012.19/852.24
  6. Step 6: Final answer
    x = 768.58

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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.