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Finding the Fourth Proportional to 934.99, 1,402.92 and 448.04

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Solution

The fourth proportional to 934.99, 1,402.92 and 448.04 is: 672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.99 : 1,402.92 = 448.04 : x
  2. Step 2: Convert to fraction form
    934.99/1,402.92 = 448.04/x
  3. Step 3: Cross multiply
    934.99x = 1,402.92 × 448.04
  4. Step 4: Simplify right side
    934.99x = 628,567.78
  5. Step 5: Solve for x
    x = 628,567.78/934.99
  6. Step 6: Final answer
    x = 672.27

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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.