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Finding the Fourth Proportional to 1,057.52, 1,459.44 and 591.84

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Solution

The fourth proportional to 1,057.52, 1,459.44 and 591.84 is: 816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.52 : 1,459.44 = 591.84 : x
  2. Step 2: Convert to fraction form
    1,057.52/1,459.44 = 591.84/x
  3. Step 3: Cross multiply
    1,057.52x = 1,459.44 × 591.84
  4. Step 4: Simplify right side
    1,057.52x = 863,754.97
  5. Step 5: Solve for x
    x = 863,754.97/1,057.52
  6. Step 6: Final answer
    x = 816.77

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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.