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Finding the Fourth Proportional to 1,134.99, 1,566.26 and 662.99

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Solution

The fourth proportional to 1,134.99, 1,566.26 and 662.99 is: 914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.99 : 1,566.26 = 662.99 : x
  2. Step 2: Convert to fraction form
    1,134.99/1,566.26 = 662.99/x
  3. Step 3: Cross multiply
    1,134.99x = 1,566.26 × 662.99
  4. Step 4: Simplify right side
    1,134.99x = 1,038,414.72
  5. Step 5: Solve for x
    x = 1,038,414.72/1,134.99
  6. Step 6: Final answer
    x = 914.91

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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.