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Finding the Fourth Proportional to 1,114.70, 1,672.20 and 566.58

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Solution

The fourth proportional to 1,114.70, 1,672.20 and 566.58 is: 849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.70 : 1,672.20 = 566.58 : x
  2. Step 2: Convert to fraction form
    1,114.70/1,672.20 = 566.58/x
  3. Step 3: Cross multiply
    1,114.70x = 1,672.20 × 566.58
  4. Step 4: Simplify right side
    1,114.70x = 947,435.08
  5. Step 5: Solve for x
    x = 947,435.08/1,114.70
  6. Step 6: Final answer
    x = 849.95

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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.