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Finding the Fourth Proportional to 671.88, 1,002.90 and 594.12

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Solution

The fourth proportional to 671.88, 1,002.90 and 594.12 is: 886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.88 : 1,002.90 = 594.12 : x
  2. Step 2: Convert to fraction form
    671.88/1,002.90 = 594.12/x
  3. Step 3: Cross multiply
    671.88x = 1,002.90 × 594.12
  4. Step 4: Simplify right side
    671.88x = 595,842.95
  5. Step 5: Solve for x
    x = 595,842.95/671.88
  6. Step 6: Final answer
    x = 886.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.