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Finding the Fourth Proportional to 1,594.59, 2,392.79 and 864.22

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Solution

The fourth proportional to 1,594.59, 2,392.79 and 864.22 is: 1,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594.59 : 2,392.79 = 864.22 : x
  2. Step 2: Convert to fraction form
    1,594.59/2,392.79 = 864.22/x
  3. Step 3: Cross multiply
    1,594.59x = 2,392.79 × 864.22
  4. Step 4: Simplify right side
    1,594.59x = 2,067,896.02
  5. Step 5: Solve for x
    x = 2,067,896.02/1,594.59
  6. Step 6: Final answer
    x = 1,296.82

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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.