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Finding the Fourth Proportional to 716.35, 1,073.76 and 469.46

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Solution

The fourth proportional to 716.35, 1,073.76 and 469.46 is: 703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.35 : 1,073.76 = 469.46 : x
  2. Step 2: Convert to fraction form
    716.35/1,073.76 = 469.46/x
  3. Step 3: Cross multiply
    716.35x = 1,073.76 × 469.46
  4. Step 4: Simplify right side
    716.35x = 504,087.37
  5. Step 5: Solve for x
    x = 504,087.37/716.35
  6. Step 6: Final answer
    x = 703.69

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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.