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Finding the Fourth Proportional to 935.46, 1,402.72 and 496.96

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Solution

The fourth proportional to 935.46, 1,402.72 and 496.96 is: 745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.46 : 1,402.72 = 496.96 : x
  2. Step 2: Convert to fraction form
    935.46/1,402.72 = 496.96/x
  3. Step 3: Cross multiply
    935.46x = 1,402.72 × 496.96
  4. Step 4: Simplify right side
    935.46x = 697,090.98
  5. Step 5: Solve for x
    x = 697,090.98/935.46
  6. Step 6: Final answer
    x = 745.19

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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.