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Finding the Fourth Proportional to 925.09, 1,378.50 and 895.73

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Solution

The fourth proportional to 925.09, 1,378.50 and 895.73 is: 1,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.09 : 1,378.50 = 895.73 : x
  2. Step 2: Convert to fraction form
    925.09/1,378.50 = 895.73/x
  3. Step 3: Cross multiply
    925.09x = 1,378.50 × 895.73
  4. Step 4: Simplify right side
    925.09x = 1,234,763.81
  5. Step 5: Solve for x
    x = 1,234,763.81/925.09
  6. Step 6: Final answer
    x = 1,334.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.