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Finding the Fourth Proportional to 1,474.64, 2,212.23 and 500.69

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Solution

The fourth proportional to 1,474.64, 2,212.23 and 500.69 is: 751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.64 : 2,212.23 = 500.69 : x
  2. Step 2: Convert to fraction form
    1,474.64/2,212.23 = 500.69/x
  3. Step 3: Cross multiply
    1,474.64x = 2,212.23 × 500.69
  4. Step 4: Simplify right side
    1,474.64x = 1,107,641.44
  5. Step 5: Solve for x
    x = 1,107,641.44/1,474.64
  6. Step 6: Final answer
    x = 751.13

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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.