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Finding the Fourth Proportional to 585.15, 807.56 and 323.25

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Solution

The fourth proportional to 585.15, 807.56 and 323.25 is: 446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.15 : 807.56 = 323.25 : x
  2. Step 2: Convert to fraction form
    585.15/807.56 = 323.25/x
  3. Step 3: Cross multiply
    585.15x = 807.56 × 323.25
  4. Step 4: Simplify right side
    585.15x = 261,043.77
  5. Step 5: Solve for x
    x = 261,043.77/585.15
  6. Step 6: Final answer
    x = 446.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.