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Finding the Fourth Proportional to 722.46, 997.12 and 566.94

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Solution

The fourth proportional to 722.46, 997.12 and 566.94 is: 782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.46 : 997.12 = 566.94 : x
  2. Step 2: Convert to fraction form
    722.46/997.12 = 566.94/x
  3. Step 3: Cross multiply
    722.46x = 997.12 × 566.94
  4. Step 4: Simplify right side
    722.46x = 565,307.21
  5. Step 5: Solve for x
    x = 565,307.21/722.46
  6. Step 6: Final answer
    x = 782.48

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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.