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Finding the Fourth Proportional to 1,025.52, 1,415.22 and 583.32

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Solution

The fourth proportional to 1,025.52, 1,415.22 and 583.32 is: 804.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.52 : 1,415.22 = 583.32 : x
  2. Step 2: Convert to fraction form
    1,025.52/1,415.22 = 583.32/x
  3. Step 3: Cross multiply
    1,025.52x = 1,415.22 × 583.32
  4. Step 4: Simplify right side
    1,025.52x = 825,526.13
  5. Step 5: Solve for x
    x = 825,526.13/1,025.52
  6. Step 6: Final answer
    x = 804.98

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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.