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Finding the Fourth Proportional to 935.94, 1,401.95 and 752.34

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Solution

The fourth proportional to 935.94, 1,401.95 and 752.34 is: 1,126.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.94 : 1,401.95 = 752.34 : x
  2. Step 2: Convert to fraction form
    935.94/1,401.95 = 752.34/x
  3. Step 3: Cross multiply
    935.94x = 1,401.95 × 752.34
  4. Step 4: Simplify right side
    935.94x = 1,054,743.06
  5. Step 5: Solve for x
    x = 1,054,743.06/935.94
  6. Step 6: Final answer
    x = 1,126.93

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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.