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Finding the Fourth Proportional to 1,004.38, 1,506.56 and 273.95

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Solution

The fourth proportional to 1,004.38, 1,506.56 and 273.95 is: 410.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.38 : 1,506.56 = 273.95 : x
  2. Step 2: Convert to fraction form
    1,004.38/1,506.56 = 273.95/x
  3. Step 3: Cross multiply
    1,004.38x = 1,506.56 × 273.95
  4. Step 4: Simplify right side
    1,004.38x = 412,720.74
  5. Step 5: Solve for x
    x = 412,720.74/1,004.38
  6. Step 6: Final answer
    x = 410.92

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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.