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Finding the Fourth Proportional to 982.88, 1,474.68 and 592.82

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Solution

The fourth proportional to 982.88, 1,474.68 and 592.82 is: 889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.88 : 1,474.68 = 592.82 : x
  2. Step 2: Convert to fraction form
    982.88/1,474.68 = 592.82/x
  3. Step 3: Cross multiply
    982.88x = 1,474.68 × 592.82
  4. Step 4: Simplify right side
    982.88x = 874,219.80
  5. Step 5: Solve for x
    x = 874,219.80/982.88
  6. Step 6: Final answer
    x = 889.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.