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Finding the Fourth Proportional to 746.24, 1,118.04 and 471.92

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Solution

The fourth proportional to 746.24, 1,118.04 and 471.92 is: 707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.24 : 1,118.04 = 471.92 : x
  2. Step 2: Convert to fraction form
    746.24/1,118.04 = 471.92/x
  3. Step 3: Cross multiply
    746.24x = 1,118.04 × 471.92
  4. Step 4: Simplify right side
    746.24x = 527,625.44
  5. Step 5: Solve for x
    x = 527,625.44/746.24
  6. Step 6: Final answer
    x = 707.05

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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.