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Finding the Fourth Proportional to 1,049.89, 1,449.01 and 651.62

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Solution

The fourth proportional to 1,049.89, 1,449.01 and 651.62 is: 899.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.89 : 1,449.01 = 651.62 : x
  2. Step 2: Convert to fraction form
    1,049.89/1,449.01 = 651.62/x
  3. Step 3: Cross multiply
    1,049.89x = 1,449.01 × 651.62
  4. Step 4: Simplify right side
    1,049.89x = 944,200.64
  5. Step 5: Solve for x
    x = 944,200.64/1,049.89
  6. Step 6: Final answer
    x = 899.34

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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.