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Finding the Fourth Proportional to 591.64, 816.35 and 444.02

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Solution

The fourth proportional to 591.64, 816.35 and 444.02 is: 612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.64 : 816.35 = 444.02 : x
  2. Step 2: Convert to fraction form
    591.64/816.35 = 444.02/x
  3. Step 3: Cross multiply
    591.64x = 816.35 × 444.02
  4. Step 4: Simplify right side
    591.64x = 362,469.43
  5. Step 5: Solve for x
    x = 362,469.43/591.64
  6. Step 6: Final answer
    x = 612.65

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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.