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Finding the Fourth Proportional to 1,041.56, 1,562.26 and 492.92

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Solution

The fourth proportional to 1,041.56, 1,562.26 and 492.92 is: 739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.56 : 1,562.26 = 492.92 : x
  2. Step 2: Convert to fraction form
    1,041.56/1,562.26 = 492.92/x
  3. Step 3: Cross multiply
    1,041.56x = 1,562.26 × 492.92
  4. Step 4: Simplify right side
    1,041.56x = 770,069.20
  5. Step 5: Solve for x
    x = 770,069.20/1,041.56
  6. Step 6: Final answer
    x = 739.34

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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.