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Finding the Fourth Proportional to 1,716.42, 2,574.23 and 483.95

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Solution

The fourth proportional to 1,716.42, 2,574.23 and 483.95 is: 725.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.42 : 2,574.23 = 483.95 : x
  2. Step 2: Convert to fraction form
    1,716.42/2,574.23 = 483.95/x
  3. Step 3: Cross multiply
    1,716.42x = 2,574.23 × 483.95
  4. Step 4: Simplify right side
    1,716.42x = 1,245,798.61
  5. Step 5: Solve for x
    x = 1,245,798.61/1,716.42
  6. Step 6: Final answer
    x = 725.81

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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.