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Finding the Fourth Proportional to 785.41, 1,177.92 and 237.46

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Solution

The fourth proportional to 785.41, 1,177.92 and 237.46 is: 356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    785.41 : 1,177.92 = 237.46 : x
  2. Step 2: Convert to fraction form
    785.41/1,177.92 = 237.46/x
  3. Step 3: Cross multiply
    785.41x = 1,177.92 × 237.46
  4. Step 4: Simplify right side
    785.41x = 279,708.88
  5. Step 5: Solve for x
    x = 279,708.88/785.41
  6. Step 6: Final answer
    x = 356.13

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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.