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Finding the Fourth Proportional to 1,263.84, 1,743.98 and 932.44

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Solution

The fourth proportional to 1,263.84, 1,743.98 and 932.44 is: 1,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.84 : 1,743.98 = 932.44 : x
  2. Step 2: Convert to fraction form
    1,263.84/1,743.98 = 932.44/x
  3. Step 3: Cross multiply
    1,263.84x = 1,743.98 × 932.44
  4. Step 4: Simplify right side
    1,263.84x = 1,626,156.71
  5. Step 5: Solve for x
    x = 1,626,156.71/1,263.84
  6. Step 6: Final answer
    x = 1,286.68

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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.