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Finding the Fourth Proportional to 1,131.93, 1,699.47 and 584.51

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Solution

The fourth proportional to 1,131.93, 1,699.47 and 584.51 is: 877.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.93 : 1,699.47 = 584.51 : x
  2. Step 2: Convert to fraction form
    1,131.93/1,699.47 = 584.51/x
  3. Step 3: Cross multiply
    1,131.93x = 1,699.47 × 584.51
  4. Step 4: Simplify right side
    1,131.93x = 993,357.21
  5. Step 5: Solve for x
    x = 993,357.21/1,131.93
  6. Step 6: Final answer
    x = 877.58

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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.