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Finding the Fourth Proportional to 1,134.46, 1,701.35 and 403.98

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Solution

The fourth proportional to 1,134.46, 1,701.35 and 403.98 is: 605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.46 : 1,701.35 = 403.98 : x
  2. Step 2: Convert to fraction form
    1,134.46/1,701.35 = 403.98/x
  3. Step 3: Cross multiply
    1,134.46x = 1,701.35 × 403.98
  4. Step 4: Simplify right side
    1,134.46x = 687,311.37
  5. Step 5: Solve for x
    x = 687,311.37/1,134.46
  6. Step 6: Final answer
    x = 605.85

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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.