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Finding the Fourth Proportional to 2,440.95, 3,661.68 and 709.58

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Solution

The fourth proportional to 2,440.95, 3,661.68 and 709.58 is: 1,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.95 : 3,661.68 = 709.58 : x
  2. Step 2: Convert to fraction form
    2,440.95/3,661.68 = 709.58/x
  3. Step 3: Cross multiply
    2,440.95x = 3,661.68 × 709.58
  4. Step 4: Simplify right side
    2,440.95x = 2,598,236.59
  5. Step 5: Solve for x
    x = 2,598,236.59/2,440.95
  6. Step 6: Final answer
    x = 1,064.44

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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.