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Finding the Fourth Proportional to 1,134.75, 1,701.72 and 404.13

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Solution

The fourth proportional to 1,134.75, 1,701.72 and 404.13 is: 606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.75 : 1,701.72 = 404.13 : x
  2. Step 2: Convert to fraction form
    1,134.75/1,701.72 = 404.13/x
  3. Step 3: Cross multiply
    1,134.75x = 1,701.72 × 404.13
  4. Step 4: Simplify right side
    1,134.75x = 687,716.10
  5. Step 5: Solve for x
    x = 687,716.10/1,134.75
  6. Step 6: Final answer
    x = 606.05

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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.