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Finding the Fourth Proportional to 925.24, 1,276.25 and 703.71

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Solution

The fourth proportional to 925.24, 1,276.25 and 703.71 is: 970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.24 : 1,276.25 = 703.71 : x
  2. Step 2: Convert to fraction form
    925.24/1,276.25 = 703.71/x
  3. Step 3: Cross multiply
    925.24x = 1,276.25 × 703.71
  4. Step 4: Simplify right side
    925.24x = 898,104.94
  5. Step 5: Solve for x
    x = 898,104.94/925.24
  6. Step 6: Final answer
    x = 970.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.