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Finding the Fourth Proportional to 1,048.91, 1,447.50 and 583.16

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Solution

The fourth proportional to 1,048.91, 1,447.50 and 583.16 is: 804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.91 : 1,447.50 = 583.16 : x
  2. Step 2: Convert to fraction form
    1,048.91/1,447.50 = 583.16/x
  3. Step 3: Cross multiply
    1,048.91x = 1,447.50 × 583.16
  4. Step 4: Simplify right side
    1,048.91x = 844,124.10
  5. Step 5: Solve for x
    x = 844,124.10/1,048.91
  6. Step 6: Final answer
    x = 804.76

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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.