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Finding the Fourth Proportional to 1,048.58, 1,447.17 and 582.92

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Solution

The fourth proportional to 1,048.58, 1,447.17 and 582.92 is: 804.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.58 : 1,447.17 = 582.92 : x
  2. Step 2: Convert to fraction form
    1,048.58/1,447.17 = 582.92/x
  3. Step 3: Cross multiply
    1,048.58x = 1,447.17 × 582.92
  4. Step 4: Simplify right side
    1,048.58x = 843,584.34
  5. Step 5: Solve for x
    x = 843,584.34/1,048.58
  6. Step 6: Final answer
    x = 804.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.