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Finding the Fourth Proportional to 1,152.88, 1,591.44 and 733.84

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Solution

The fourth proportional to 1,152.88, 1,591.44 and 733.84 is: 1,013.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.88 : 1,591.44 = 733.84 : x
  2. Step 2: Convert to fraction form
    1,152.88/1,591.44 = 733.84/x
  3. Step 3: Cross multiply
    1,152.88x = 1,591.44 × 733.84
  4. Step 4: Simplify right side
    1,152.88x = 1,167,862.33
  5. Step 5: Solve for x
    x = 1,167,862.33/1,152.88
  6. Step 6: Final answer
    x = 1,013.00

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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.