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Finding the Fourth Proportional to 1,057.68, 1,459.26 and 591.84

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Solution

The fourth proportional to 1,057.68, 1,459.26 and 591.84 is: 816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.68 : 1,459.26 = 591.84 : x
  2. Step 2: Convert to fraction form
    1,057.68/1,459.26 = 591.84/x
  3. Step 3: Cross multiply
    1,057.68x = 1,459.26 × 591.84
  4. Step 4: Simplify right side
    1,057.68x = 863,648.44
  5. Step 5: Solve for x
    x = 863,648.44/1,057.68
  6. Step 6: Final answer
    x = 816.55

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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.