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Finding the Fourth Proportional to 855.52, 1,180.44 and 524.02

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Solution

The fourth proportional to 855.52, 1,180.44 and 524.02 is: 723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.52 : 1,180.44 = 524.02 : x
  2. Step 2: Convert to fraction form
    855.52/1,180.44 = 524.02/x
  3. Step 3: Cross multiply
    855.52x = 1,180.44 × 524.02
  4. Step 4: Simplify right side
    855.52x = 618,574.17
  5. Step 5: Solve for x
    x = 618,574.17/855.52
  6. Step 6: Final answer
    x = 723.04

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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.