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Finding the Fourth Proportional to 1,176.88, 1,763.46 and 944.56

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Solution

The fourth proportional to 1,176.88, 1,763.46 and 944.56 is: 1,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.88 : 1,763.46 = 944.56 : x
  2. Step 2: Convert to fraction form
    1,176.88/1,763.46 = 944.56/x
  3. Step 3: Cross multiply
    1,176.88x = 1,763.46 × 944.56
  4. Step 4: Simplify right side
    1,176.88x = 1,665,693.78
  5. Step 5: Solve for x
    x = 1,665,693.78/1,176.88
  6. Step 6: Final answer
    x = 1,415.35

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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.