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Finding the Fourth Proportional to 1,176.22, 1,763.80 and 560.67

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Solution

The fourth proportional to 1,176.22, 1,763.80 and 560.67 is: 840.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.22 : 1,763.80 = 560.67 : x
  2. Step 2: Convert to fraction form
    1,176.22/1,763.80 = 560.67/x
  3. Step 3: Cross multiply
    1,176.22x = 1,763.80 × 560.67
  4. Step 4: Simplify right side
    1,176.22x = 988,906.94
  5. Step 5: Solve for x
    x = 988,906.94/1,176.22
  6. Step 6: Final answer
    x = 840.75

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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.