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Finding the Fourth Proportional to 474.46, 710.62 and 411.96

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Solution

The fourth proportional to 474.46, 710.62 and 411.96 is: 617.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.46 : 710.62 = 411.96 : x
  2. Step 2: Convert to fraction form
    474.46/710.62 = 411.96/x
  3. Step 3: Cross multiply
    474.46x = 710.62 × 411.96
  4. Step 4: Simplify right side
    474.46x = 292,748.97
  5. Step 5: Solve for x
    x = 292,748.97/474.46
  6. Step 6: Final answer
    x = 617.02

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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.