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Finding the Fourth Proportional to 1,060.59, 1,588.17 and 694.31

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Solution

The fourth proportional to 1,060.59, 1,588.17 and 694.31 is: 1,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.59 : 1,588.17 = 694.31 : x
  2. Step 2: Convert to fraction form
    1,060.59/1,588.17 = 694.31/x
  3. Step 3: Cross multiply
    1,060.59x = 1,588.17 × 694.31
  4. Step 4: Simplify right side
    1,060.59x = 1,102,678.84
  5. Step 5: Solve for x
    x = 1,102,678.84/1,060.59
  6. Step 6: Final answer
    x = 1,039.68

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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.