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Finding the Fourth Proportional to 955.67, 1,432.56 and 462.38

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Solution

The fourth proportional to 955.67, 1,432.56 and 462.38 is: 693.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.67 : 1,432.56 = 462.38 : x
  2. Step 2: Convert to fraction form
    955.67/1,432.56 = 462.38/x
  3. Step 3: Cross multiply
    955.67x = 1,432.56 × 462.38
  4. Step 4: Simplify right side
    955.67x = 662,392.45
  5. Step 5: Solve for x
    x = 662,392.45/955.67
  6. Step 6: Final answer
    x = 693.12

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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.