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Finding the Fourth Proportional to 586.61, 809.50 and 324.63

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Solution

The fourth proportional to 586.61, 809.50 and 324.63 is: 447.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.61 : 809.50 = 324.63 : x
  2. Step 2: Convert to fraction form
    586.61/809.50 = 324.63/x
  3. Step 3: Cross multiply
    586.61x = 809.50 × 324.63
  4. Step 4: Simplify right side
    586.61x = 262,787.99
  5. Step 5: Solve for x
    x = 262,787.99/586.61
  6. Step 6: Final answer
    x = 447.98

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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.