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Finding the Fourth Proportional to 536,936.80, 805,405.20 and 162,978.40

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Solution

The fourth proportional to 536,936.80, 805,405.20 and 162,978.40 is: 244,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,936.80 : 805,405.20 = 162,978.40 : x
  2. Step 2: Convert to fraction form
    536,936.80/805,405.20 = 162,978.40/x
  3. Step 3: Cross multiply
    536,936.80x = 805,405.20 × 162,978.40
  4. Step 4: Simplify right side
    536,936.80x = 131,263,650,847.68
  5. Step 5: Solve for x
    x = 131,263,650,847.68/536,936.80
  6. Step 6: Final answer
    x = 244,467.60

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Similar ratio
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1.5x scale

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.