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Finding the Fourth Proportional to 1,473.48, 2,215.08 and 1,230.48

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Solution

The fourth proportional to 1,473.48, 2,215.08 and 1,230.48 is: 1,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.48 : 2,215.08 = 1,230.48 : x
  2. Step 2: Convert to fraction form
    1,473.48/2,215.08 = 1,230.48/x
  3. Step 3: Cross multiply
    1,473.48x = 2,215.08 × 1,230.48
  4. Step 4: Simplify right side
    1,473.48x = 2,725,611.64
  5. Step 5: Solve for x
    x = 2,725,611.64/1,473.48
  6. Step 6: Final answer
    x = 1,849.78

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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.