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Finding the Fourth Proportional to 758.88, 1,135.68 and 466.25

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Solution

The fourth proportional to 758.88, 1,135.68 and 466.25 is: 697.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.88 : 1,135.68 = 466.25 : x
  2. Step 2: Convert to fraction form
    758.88/1,135.68 = 466.25/x
  3. Step 3: Cross multiply
    758.88x = 1,135.68 × 466.25
  4. Step 4: Simplify right side
    758.88x = 529,510.80
  5. Step 5: Solve for x
    x = 529,510.80/758.88
  6. Step 6: Final answer
    x = 697.75

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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.