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Finding the Fourth Proportional to 935.55, 1,404.44 and 741.25

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Solution

The fourth proportional to 935.55, 1,404.44 and 741.25 is: 1,112.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.55 : 1,404.44 = 741.25 : x
  2. Step 2: Convert to fraction form
    935.55/1,404.44 = 741.25/x
  3. Step 3: Cross multiply
    935.55x = 1,404.44 × 741.25
  4. Step 4: Simplify right side
    935.55x = 1,041,041.98
  5. Step 5: Solve for x
    x = 1,041,041.98/935.55
  6. Step 6: Final answer
    x = 1,112.76

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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.