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Finding the Fourth Proportional to 1,032.69, 1,425.09 and 613.23

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Solution

The fourth proportional to 1,032.69, 1,425.09 and 613.23 is: 846.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.69 : 1,425.09 = 613.23 : x
  2. Step 2: Convert to fraction form
    1,032.69/1,425.09 = 613.23/x
  3. Step 3: Cross multiply
    1,032.69x = 1,425.09 × 613.23
  4. Step 4: Simplify right side
    1,032.69x = 873,907.94
  5. Step 5: Solve for x
    x = 873,907.94/1,032.69
  6. Step 6: Final answer
    x = 846.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.