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Finding the Fourth Proportional to 1,592.14, 2,197.45 and 994.90

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Solution

The fourth proportional to 1,592.14, 2,197.45 and 994.90 is: 1,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.14 : 2,197.45 = 994.90 : x
  2. Step 2: Convert to fraction form
    1,592.14/2,197.45 = 994.90/x
  3. Step 3: Cross multiply
    1,592.14x = 2,197.45 × 994.90
  4. Step 4: Simplify right side
    1,592.14x = 2,186,243.01
  5. Step 5: Solve for x
    x = 2,186,243.01/1,592.14
  6. Step 6: Final answer
    x = 1,373.15

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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.