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Finding the Fourth Proportional to 2,269.88, 3,403.63 and 709.59

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Solution

The fourth proportional to 2,269.88, 3,403.63 and 709.59 is: 1,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.88 : 3,403.63 = 709.59 : x
  2. Step 2: Convert to fraction form
    2,269.88/3,403.63 = 709.59/x
  3. Step 3: Cross multiply
    2,269.88x = 3,403.63 × 709.59
  4. Step 4: Simplify right side
    2,269.88x = 2,415,191.47
  5. Step 5: Solve for x
    x = 2,415,191.47/2,269.88
  6. Step 6: Final answer
    x = 1,064.02

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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.