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Finding the Fourth Proportional to 592.16, 817.16 and 330.18

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Solution

The fourth proportional to 592.16, 817.16 and 330.18 is: 455.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.16 : 817.16 = 330.18 : x
  2. Step 2: Convert to fraction form
    592.16/817.16 = 330.18/x
  3. Step 3: Cross multiply
    592.16x = 817.16 × 330.18
  4. Step 4: Simplify right side
    592.16x = 269,809.89
  5. Step 5: Solve for x
    x = 269,809.89/592.16
  6. Step 6: Final answer
    x = 455.64

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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.