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Finding the Fourth Proportional to 675.32, 932.07 and 395.70

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Solution

The fourth proportional to 675.32, 932.07 and 395.70 is: 546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.32 : 932.07 = 395.70 : x
  2. Step 2: Convert to fraction form
    675.32/932.07 = 395.70/x
  3. Step 3: Cross multiply
    675.32x = 932.07 × 395.70
  4. Step 4: Simplify right side
    675.32x = 368,818.09
  5. Step 5: Solve for x
    x = 368,818.09/675.32
  6. Step 6: Final answer
    x = 546.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.