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Finding the Fourth Proportional to 1,093.34, 1,508.93 and 651.22

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Solution

The fourth proportional to 1,093.34, 1,508.93 and 651.22 is: 898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.34 : 1,508.93 = 651.22 : x
  2. Step 2: Convert to fraction form
    1,093.34/1,508.93 = 651.22/x
  3. Step 3: Cross multiply
    1,093.34x = 1,508.93 × 651.22
  4. Step 4: Simplify right side
    1,093.34x = 982,645.39
  5. Step 5: Solve for x
    x = 982,645.39/1,093.34
  6. Step 6: Final answer
    x = 898.76

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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.