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Finding the Fourth Proportional to 282,611.22, 389,735.67 and 185,644.50

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Solution

The fourth proportional to 282,611.22, 389,735.67 and 185,644.50 is: 256,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,611.22 : 389,735.67 = 185,644.50 : x
  2. Step 2: Convert to fraction form
    282,611.22/389,735.67 = 185,644.50/x
  3. Step 3: Cross multiply
    282,611.22x = 389,735.67 × 185,644.50
  4. Step 4: Simplify right side
    282,611.22x = 72,352,283,589.32
  5. Step 5: Solve for x
    x = 72,352,283,589.32/282,611.22
  6. Step 6: Final answer
    x = 256,013.49

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1.5x scale

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.