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Finding the Fourth Proportional to 536,189.30, 804,575.55 and 220,678.10

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Solution

The fourth proportional to 536,189.30, 804,575.55 and 220,678.10 is: 331,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,189.30 : 804,575.55 = 220,678.10 : x
  2. Step 2: Convert to fraction form
    536,189.30/804,575.55 = 220,678.10/x
  3. Step 3: Cross multiply
    536,189.30x = 804,575.55 × 220,678.10
  4. Step 4: Simplify right side
    536,189.30x = 177,552,203,680.46
  5. Step 5: Solve for x
    x = 177,552,203,680.46/536,189.30
  6. Step 6: Final answer
    x = 331,137.16

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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.