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Finding the Fourth Proportional to 576.55, 795.60 and 314.56

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Solution

The fourth proportional to 576.55, 795.60 and 314.56 is: 434.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.55 : 795.60 = 314.56 : x
  2. Step 2: Convert to fraction form
    576.55/795.60 = 314.56/x
  3. Step 3: Cross multiply
    576.55x = 795.60 × 314.56
  4. Step 4: Simplify right side
    576.55x = 250,263.94
  5. Step 5: Solve for x
    x = 250,263.94/576.55
  6. Step 6: Final answer
    x = 434.07

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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.