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Finding the Fourth Proportional to 592, 817.44 and 396

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Solution

The fourth proportional to 592, 817.44 and 396 is: 546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    592 : 817.44 = 396 : x
  2. Step 2: Convert to fraction form
    592/817.44 = 396/x
  3. Step 3: Cross multiply
    592x = 817.44 × 396
  4. Step 4: Simplify right side
    592x = 323,706.24
  5. Step 5: Solve for x
    x = 323,706.24/592
  6. Step 6: Final answer
    x = 546.80

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Why These Related Problems?

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