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Finding the Fourth Proportional to 536,644.90, 804,994.91 and 137,289.12

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Solution

The fourth proportional to 536,644.90, 804,994.91 and 137,289.12 is: 205,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,644.90 : 804,994.91 = 137,289.12 : x
  2. Step 2: Convert to fraction form
    536,644.90/804,994.91 = 137,289.12/x
  3. Step 3: Cross multiply
    536,644.90x = 804,994.91 × 137,289.12
  4. Step 4: Simplify right side
    536,644.90x = 110,517,042,798.38
  5. Step 5: Solve for x
    x = 110,517,042,798.38/536,644.90
  6. Step 6: Final answer
    x = 205,940.73

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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.