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Finding the Fourth Proportional to 1,040.58, 1,561.01 and 382.36

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Solution

The fourth proportional to 1,040.58, 1,561.01 and 382.36 is: 573.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.58 : 1,561.01 = 382.36 : x
  2. Step 2: Convert to fraction form
    1,040.58/1,561.01 = 382.36/x
  3. Step 3: Cross multiply
    1,040.58x = 1,561.01 × 382.36
  4. Step 4: Simplify right side
    1,040.58x = 596,867.78
  5. Step 5: Solve for x
    x = 596,867.78/1,040.58
  6. Step 6: Final answer
    x = 573.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.