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Finding the Fourth Proportional to 590.44, 815 and 424.60

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Solution

The fourth proportional to 590.44, 815 and 424.60 is: 586.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.44 : 815 = 424.60 : x
  2. Step 2: Convert to fraction form
    590.44/815 = 424.60/x
  3. Step 3: Cross multiply
    590.44x = 815 × 424.60
  4. Step 4: Simplify right side
    590.44x = 346,049
  5. Step 5: Solve for x
    x = 346,049/590.44
  6. Step 6: Final answer
    x = 586.09

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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.