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Finding the Fourth Proportional to 1,048.82, 1,447.36 and 583.06

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Solution

The fourth proportional to 1,048.82, 1,447.36 and 583.06 is: 804.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.82 : 1,447.36 = 583.06 : x
  2. Step 2: Convert to fraction form
    1,048.82/1,447.36 = 583.06/x
  3. Step 3: Cross multiply
    1,048.82x = 1,447.36 × 583.06
  4. Step 4: Simplify right side
    1,048.82x = 843,897.72
  5. Step 5: Solve for x
    x = 843,897.72/1,048.82
  6. Step 6: Final answer
    x = 804.62

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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.