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Finding the Fourth Proportional to 961.19, 1,439.62 and 594.93

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Solution

The fourth proportional to 961.19, 1,439.62 and 594.93 is: 891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    961.19 : 1,439.62 = 594.93 : x
  2. Step 2: Convert to fraction form
    961.19/1,439.62 = 594.93/x
  3. Step 3: Cross multiply
    961.19x = 1,439.62 × 594.93
  4. Step 4: Simplify right side
    961.19x = 856,471.64
  5. Step 5: Solve for x
    x = 856,471.64/961.19
  6. Step 6: Final answer
    x = 891.06

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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.