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Finding the Fourth Proportional to 673.44, 1,010.80 and 587.04

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Solution

The fourth proportional to 673.44, 1,010.80 and 587.04 is: 881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.44 : 1,010.80 = 587.04 : x
  2. Step 2: Convert to fraction form
    673.44/1,010.80 = 587.04/x
  3. Step 3: Cross multiply
    673.44x = 1,010.80 × 587.04
  4. Step 4: Simplify right side
    673.44x = 593,380.03
  5. Step 5: Solve for x
    x = 593,380.03/673.44
  6. Step 6: Final answer
    x = 881.12

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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.