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Finding the Fourth Proportional to 1,244.99, 1,717.29 and 925.67

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Solution

The fourth proportional to 1,244.99, 1,717.29 and 925.67 is: 1,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.99 : 1,717.29 = 925.67 : x
  2. Step 2: Convert to fraction form
    1,244.99/1,717.29 = 925.67/x
  3. Step 3: Cross multiply
    1,244.99x = 1,717.29 × 925.67
  4. Step 4: Simplify right side
    1,244.99x = 1,589,635.25
  5. Step 5: Solve for x
    x = 1,589,635.25/1,244.99
  6. Step 6: Final answer
    x = 1,276.83

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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.