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Finding the Fourth Proportional to 1,063.40, 1,467.45 and 591.33

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Solution

The fourth proportional to 1,063.40, 1,467.45 and 591.33 is: 816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.40 : 1,467.45 = 591.33 : x
  2. Step 2: Convert to fraction form
    1,063.40/1,467.45 = 591.33/x
  3. Step 3: Cross multiply
    1,063.40x = 1,467.45 × 591.33
  4. Step 4: Simplify right side
    1,063.40x = 867,747.21
  5. Step 5: Solve for x
    x = 867,747.21/1,063.40
  6. Step 6: Final answer
    x = 816.01

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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.