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Finding the Fourth Proportional to 1,057.26, 1,459.06 and 591.50

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Solution

The fourth proportional to 1,057.26, 1,459.06 and 591.50 is: 816.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.26 : 1,459.06 = 591.50 : x
  2. Step 2: Convert to fraction form
    1,057.26/1,459.06 = 591.50/x
  3. Step 3: Cross multiply
    1,057.26x = 1,459.06 × 591.50
  4. Step 4: Simplify right side
    1,057.26x = 863,033.99
  5. Step 5: Solve for x
    x = 863,033.99/1,057.26
  6. Step 6: Final answer
    x = 816.29

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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.