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Finding the Fourth Proportional to 846, 1,167.75 and 496.62

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Solution

The fourth proportional to 846, 1,167.75 and 496.62 is: 685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    846 : 1,167.75 = 496.62 : x
  2. Step 2: Convert to fraction form
    846/1,167.75 = 496.62/x
  3. Step 3: Cross multiply
    846x = 1,167.75 × 496.62
  4. Step 4: Simplify right side
    846x = 579,928.01
  5. Step 5: Solve for x
    x = 579,928.01/846
  6. Step 6: Final answer
    x = 685.49

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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.