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Finding the Fourth Proportional to 1,024.70, 1,414.08 and 558.94

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Solution

The fourth proportional to 1,024.70, 1,414.08 and 558.94 is: 771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.70 : 1,414.08 = 558.94 : x
  2. Step 2: Convert to fraction form
    1,024.70/1,414.08 = 558.94/x
  3. Step 3: Cross multiply
    1,024.70x = 1,414.08 × 558.94
  4. Step 4: Simplify right side
    1,024.70x = 790,385.88
  5. Step 5: Solve for x
    x = 790,385.88/1,024.70
  6. Step 6: Final answer
    x = 771.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.