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Finding the Fourth Proportional to 585.37, 877.76 and 311.38

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Solution

The fourth proportional to 585.37, 877.76 and 311.38 is: 466.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.37 : 877.76 = 311.38 : x
  2. Step 2: Convert to fraction form
    585.37/877.76 = 311.38/x
  3. Step 3: Cross multiply
    585.37x = 877.76 × 311.38
  4. Step 4: Simplify right side
    585.37x = 273,319.26
  5. Step 5: Solve for x
    x = 273,319.26/585.37
  6. Step 6: Final answer
    x = 466.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.