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Finding the Fourth Proportional to 1,096.04, 1,643.45 and 365.22

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Solution

The fourth proportional to 1,096.04, 1,643.45 and 365.22 is: 547.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.04 : 1,643.45 = 365.22 : x
  2. Step 2: Convert to fraction form
    1,096.04/1,643.45 = 365.22/x
  3. Step 3: Cross multiply
    1,096.04x = 1,643.45 × 365.22
  4. Step 4: Simplify right side
    1,096.04x = 600,216.70
  5. Step 5: Solve for x
    x = 600,216.70/1,096.04
  6. Step 6: Final answer
    x = 547.62

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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.