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Finding the Fourth Proportional to 948.92, 1,423.37 and 582.59

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Solution

The fourth proportional to 948.92, 1,423.37 and 582.59 is: 873.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    948.92 : 1,423.37 = 582.59 : x
  2. Step 2: Convert to fraction form
    948.92/1,423.37 = 582.59/x
  3. Step 3: Cross multiply
    948.92x = 1,423.37 × 582.59
  4. Step 4: Simplify right side
    948.92x = 829,246.14
  5. Step 5: Solve for x
    x = 829,246.14/948.92
  6. Step 6: Final answer
    x = 873.89

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Why These Related Problems?

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