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Finding the Fourth Proportional to 935.84, 1,404 and 754.88

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Solution

The fourth proportional to 935.84, 1,404 and 754.88 is: 1,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.84 : 1,404 = 754.88 : x
  2. Step 2: Convert to fraction form
    935.84/1,404 = 754.88/x
  3. Step 3: Cross multiply
    935.84x = 1,404 × 754.88
  4. Step 4: Simplify right side
    935.84x = 1,059,851.52
  5. Step 5: Solve for x
    x = 1,059,851.52/935.84
  6. Step 6: Final answer
    x = 1,132.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.