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Finding the Fourth Proportional to 794.63, 1,191.04 and 448.13

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Solution

The fourth proportional to 794.63, 1,191.04 and 448.13 is: 671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.63 : 1,191.04 = 448.13 : x
  2. Step 2: Convert to fraction form
    794.63/1,191.04 = 448.13/x
  3. Step 3: Cross multiply
    794.63x = 1,191.04 × 448.13
  4. Step 4: Simplify right side
    794.63x = 533,742.61
  5. Step 5: Solve for x
    x = 533,742.61/794.63
  6. Step 6: Final answer
    x = 671.68

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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.