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Finding the Fourth Proportional to 1,462, 2,190.08 and 729.36

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Solution

The fourth proportional to 1,462, 2,190.08 and 729.36 is: 1,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462 : 2,190.08 = 729.36 : x
  2. Step 2: Convert to fraction form
    1,462/2,190.08 = 729.36/x
  3. Step 3: Cross multiply
    1,462x = 2,190.08 × 729.36
  4. Step 4: Simplify right side
    1,462x = 1,597,356.75
  5. Step 5: Solve for x
    x = 1,597,356.75/1,462
  6. Step 6: Final answer
    x = 1,092.58

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