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Finding the Fourth Proportional to 1,362.55, 2,042.59 and 496.25

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Solution

The fourth proportional to 1,362.55, 2,042.59 and 496.25 is: 743.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.55 : 2,042.59 = 496.25 : x
  2. Step 2: Convert to fraction form
    1,362.55/2,042.59 = 496.25/x
  3. Step 3: Cross multiply
    1,362.55x = 2,042.59 × 496.25
  4. Step 4: Simplify right side
    1,362.55x = 1,013,635.29
  5. Step 5: Solve for x
    x = 1,013,635.29/1,362.55
  6. Step 6: Final answer
    x = 743.93

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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.