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Finding the Fourth Proportional to 1,057.08, 1,458.77 and 591.33

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Solution

The fourth proportional to 1,057.08, 1,458.77 and 591.33 is: 816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.08 : 1,458.77 = 591.33 : x
  2. Step 2: Convert to fraction form
    1,057.08/1,458.77 = 591.33/x
  3. Step 3: Cross multiply
    1,057.08x = 1,458.77 × 591.33
  4. Step 4: Simplify right side
    1,057.08x = 862,611.51
  5. Step 5: Solve for x
    x = 862,611.51/1,057.08
  6. Step 6: Final answer
    x = 816.03

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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.