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Finding the Fourth Proportional to 519, 716 and 332.16

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Solution

The fourth proportional to 519, 716 and 332.16 is: 458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    519 : 716 = 332.16 : x
  2. Step 2: Convert to fraction form
    519/716 = 332.16/x
  3. Step 3: Cross multiply
    519x = 716 × 332.16
  4. Step 4: Simplify right side
    519x = 237,826.56
  5. Step 5: Solve for x
    x = 237,826.56/519
  6. Step 6: Final answer
    x = 458.24

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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.