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Finding the Fourth Proportional to 746.48, 1,120.08 and 362

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Solution

The fourth proportional to 746.48, 1,120.08 and 362 is: 543.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.48 : 1,120.08 = 362 : x
  2. Step 2: Convert to fraction form
    746.48/1,120.08 = 362/x
  3. Step 3: Cross multiply
    746.48x = 1,120.08 × 362
  4. Step 4: Simplify right side
    746.48x = 405,468.96
  5. Step 5: Solve for x
    x = 405,468.96/746.48
  6. Step 6: Final answer
    x = 543.17

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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.