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Finding the Fourth Proportional to 941.32, 1,409.25 and 575.00

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Solution

The fourth proportional to 941.32, 1,409.25 and 575.00 is: 860.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.32 : 1,409.25 = 575.00 : x
  2. Step 2: Convert to fraction form
    941.32/1,409.25 = 575.00/x
  3. Step 3: Cross multiply
    941.32x = 1,409.25 × 575.00
  4. Step 4: Simplify right side
    941.32x = 810,315.91
  5. Step 5: Solve for x
    x = 810,315.91/941.32
  6. Step 6: Final answer
    x = 860.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.