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Finding the Fourth Proportional to 932.32, 1,396.14 and 541.36

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Solution

The fourth proportional to 932.32, 1,396.14 and 541.36 is: 810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.32 : 1,396.14 = 541.36 : x
  2. Step 2: Convert to fraction form
    932.32/1,396.14 = 541.36/x
  3. Step 3: Cross multiply
    932.32x = 1,396.14 × 541.36
  4. Step 4: Simplify right side
    932.32x = 755,814.35
  5. Step 5: Solve for x
    x = 755,814.35/932.32
  6. Step 6: Final answer
    x = 810.68

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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.