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Finding the Fourth Proportional to 2,359.67, 3,539.05 and 716.63

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Solution

The fourth proportional to 2,359.67, 3,539.05 and 716.63 is: 1,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.67 : 3,539.05 = 716.63 : x
  2. Step 2: Convert to fraction form
    2,359.67/3,539.05 = 716.63/x
  3. Step 3: Cross multiply
    2,359.67x = 3,539.05 × 716.63
  4. Step 4: Simplify right side
    2,359.67x = 2,536,169.91
  5. Step 5: Solve for x
    x = 2,536,169.91/2,359.67
  6. Step 6: Final answer
    x = 1,074.80

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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.