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Finding the Fourth Proportional to 845.97, 1,167.80 and 514.50

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Solution

The fourth proportional to 845.97, 1,167.80 and 514.50 is: 710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.97 : 1,167.80 = 514.50 : x
  2. Step 2: Convert to fraction form
    845.97/1,167.80 = 514.50/x
  3. Step 3: Cross multiply
    845.97x = 1,167.80 × 514.50
  4. Step 4: Simplify right side
    845.97x = 600,833.10
  5. Step 5: Solve for x
    x = 600,833.10/845.97
  6. Step 6: Final answer
    x = 710.23

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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.