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Finding the Fourth Proportional to 1,134.53, 1,700.77 and 403.94

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Solution

The fourth proportional to 1,134.53, 1,700.77 and 403.94 is: 605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.53 : 1,700.77 = 403.94 : x
  2. Step 2: Convert to fraction form
    1,134.53/1,700.77 = 403.94/x
  3. Step 3: Cross multiply
    1,134.53x = 1,700.77 × 403.94
  4. Step 4: Simplify right side
    1,134.53x = 687,009.98
  5. Step 5: Solve for x
    x = 687,009.98/1,134.53
  6. Step 6: Final answer
    x = 605.54

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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.