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Finding the Fourth Proportional to 1,026.65, 1,540.33 and 563.84

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Solution

The fourth proportional to 1,026.65, 1,540.33 and 563.84 is: 845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.65 : 1,540.33 = 563.84 : x
  2. Step 2: Convert to fraction form
    1,026.65/1,540.33 = 563.84/x
  3. Step 3: Cross multiply
    1,026.65x = 1,540.33 × 563.84
  4. Step 4: Simplify right side
    1,026.65x = 868,489.15
  5. Step 5: Solve for x
    x = 868,489.15/1,026.65
  6. Step 6: Final answer
    x = 845.95

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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.