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Finding the Fourth Proportional to 536,764.80, 805,147.20 and 221,059.20

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Solution

The fourth proportional to 536,764.80, 805,147.20 and 221,059.20 is: 331,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,764.80 : 805,147.20 = 221,059.20 : x
  2. Step 2: Convert to fraction form
    536,764.80/805,147.20 = 221,059.20/x
  3. Step 3: Cross multiply
    536,764.80x = 805,147.20 × 221,059.20
  4. Step 4: Simplify right side
    536,764.80x = 177,985,195,914.24
  5. Step 5: Solve for x
    x = 177,985,195,914.24/536,764.80
  6. Step 6: Final answer
    x = 331,588.80

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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.