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Finding the Fourth Proportional to 1,035.92, 1,553.88 and 549.32

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Solution

The fourth proportional to 1,035.92, 1,553.88 and 549.32 is: 823.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.92 : 1,553.88 = 549.32 : x
  2. Step 2: Convert to fraction form
    1,035.92/1,553.88 = 549.32/x
  3. Step 3: Cross multiply
    1,035.92x = 1,553.88 × 549.32
  4. Step 4: Simplify right side
    1,035.92x = 853,571.65
  5. Step 5: Solve for x
    x = 853,571.65/1,035.92
  6. Step 6: Final answer
    x = 823.97

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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.