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Finding the Fourth Proportional to 1,460.92, 2,189.88 and 582.20

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Solution

The fourth proportional to 1,460.92, 2,189.88 and 582.20 is: 872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.92 : 2,189.88 = 582.20 : x
  2. Step 2: Convert to fraction form
    1,460.92/2,189.88 = 582.20/x
  3. Step 3: Cross multiply
    1,460.92x = 2,189.88 × 582.20
  4. Step 4: Simplify right side
    1,460.92x = 1,274,948.14
  5. Step 5: Solve for x
    x = 1,274,948.14/1,460.92
  6. Step 6: Final answer
    x = 872.70

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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.