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Finding the Fourth Proportional to 1,012.04, 1,517.01 and 548.83

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Solution

The fourth proportional to 1,012.04, 1,517.01 and 548.83 is: 822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012.04 : 1,517.01 = 548.83 : x
  2. Step 2: Convert to fraction form
    1,012.04/1,517.01 = 548.83/x
  3. Step 3: Cross multiply
    1,012.04x = 1,517.01 × 548.83
  4. Step 4: Simplify right side
    1,012.04x = 832,587.79
  5. Step 5: Solve for x
    x = 832,587.79/1,012.04
  6. Step 6: Final answer
    x = 822.69

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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.