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Finding the Fourth Proportional to 748.08, 1,126 and 566.40

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Solution

The fourth proportional to 748.08, 1,126 and 566.40 is: 852.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.08 : 1,126 = 566.40 : x
  2. Step 2: Convert to fraction form
    748.08/1,126 = 566.40/x
  3. Step 3: Cross multiply
    748.08x = 1,126 × 566.40
  4. Step 4: Simplify right side
    748.08x = 637,766.40
  5. Step 5: Solve for x
    x = 637,766.40/748.08
  6. Step 6: Final answer
    x = 852.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.