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Finding the Fourth Proportional to 1,259.14, 1,736.46 and 833.59

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Solution

The fourth proportional to 1,259.14, 1,736.46 and 833.59 is: 1,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.14 : 1,736.46 = 833.59 : x
  2. Step 2: Convert to fraction form
    1,259.14/1,736.46 = 833.59/x
  3. Step 3: Cross multiply
    1,259.14x = 1,736.46 × 833.59
  4. Step 4: Simplify right side
    1,259.14x = 1,447,495.69
  5. Step 5: Solve for x
    x = 1,447,495.69/1,259.14
  6. Step 6: Final answer
    x = 1,149.59

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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.