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Finding the Fourth Proportional to 1,486.48, 2,229.40 and 562

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Solution

The fourth proportional to 1,486.48, 2,229.40 and 562 is: 842.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.48 : 2,229.40 = 562 : x
  2. Step 2: Convert to fraction form
    1,486.48/2,229.40 = 562/x
  3. Step 3: Cross multiply
    1,486.48x = 2,229.40 × 562
  4. Step 4: Simplify right side
    1,486.48x = 1,252,922.80
  5. Step 5: Solve for x
    x = 1,252,922.80/1,486.48
  6. Step 6: Final answer
    x = 842.88

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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.