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Finding the Fourth Proportional to 1,244.99, 1,866.20 and 464.51

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Solution

The fourth proportional to 1,244.99, 1,866.20 and 464.51 is: 696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.99 : 1,866.20 = 464.51 : x
  2. Step 2: Convert to fraction form
    1,244.99/1,866.20 = 464.51/x
  3. Step 3: Cross multiply
    1,244.99x = 1,866.20 × 464.51
  4. Step 4: Simplify right side
    1,244.99x = 866,856.91
  5. Step 5: Solve for x
    x = 866,856.91/1,244.99
  6. Step 6: Final answer
    x = 696.27

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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.