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Finding the Fourth Proportional to 1,063.43, 1,466.66 and 814.66

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Solution

The fourth proportional to 1,063.43, 1,466.66 and 814.66 is: 1,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.43 : 1,466.66 = 814.66 : x
  2. Step 2: Convert to fraction form
    1,063.43/1,466.66 = 814.66/x
  3. Step 3: Cross multiply
    1,063.43x = 1,466.66 × 814.66
  4. Step 4: Simplify right side
    1,063.43x = 1,194,823.02
  5. Step 5: Solve for x
    x = 1,194,823.02/1,063.43
  6. Step 6: Final answer
    x = 1,123.56

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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.