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Finding the Fourth Proportional to 1,115.81, 1,673.25 and 595.49

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Solution

The fourth proportional to 1,115.81, 1,673.25 and 595.49 is: 892.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115.81 : 1,673.25 = 595.49 : x
  2. Step 2: Convert to fraction form
    1,115.81/1,673.25 = 595.49/x
  3. Step 3: Cross multiply
    1,115.81x = 1,673.25 × 595.49
  4. Step 4: Simplify right side
    1,115.81x = 996,403.64
  5. Step 5: Solve for x
    x = 996,403.64/1,115.81
  6. Step 6: Final answer
    x = 892.99

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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.