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Finding the Fourth Proportional to 1,063.72, 1,468.76 and 733.24

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Solution

The fourth proportional to 1,063.72, 1,468.76 and 733.24 is: 1,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.72 : 1,468.76 = 733.24 : x
  2. Step 2: Convert to fraction form
    1,063.72/1,468.76 = 733.24/x
  3. Step 3: Cross multiply
    1,063.72x = 1,468.76 × 733.24
  4. Step 4: Simplify right side
    1,063.72x = 1,076,953.58
  5. Step 5: Solve for x
    x = 1,076,953.58/1,063.72
  6. Step 6: Final answer
    x = 1,012.44

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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.