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Finding the Fourth Proportional to 848.26, 1,170.56 and 475.22

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Solution

The fourth proportional to 848.26, 1,170.56 and 475.22 is: 655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.26 : 1,170.56 = 475.22 : x
  2. Step 2: Convert to fraction form
    848.26/1,170.56 = 475.22/x
  3. Step 3: Cross multiply
    848.26x = 1,170.56 × 475.22
  4. Step 4: Simplify right side
    848.26x = 556,273.52
  5. Step 5: Solve for x
    x = 556,273.52/848.26
  6. Step 6: Final answer
    x = 655.78

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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.