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Finding the Fourth Proportional to 353,079.40, 529,619.10 and 227,108.20

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Solution

The fourth proportional to 353,079.40, 529,619.10 and 227,108.20 is: 340,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,079.40 : 529,619.10 = 227,108.20 : x
  2. Step 2: Convert to fraction form
    353,079.40/529,619.10 = 227,108.20/x
  3. Step 3: Cross multiply
    353,079.40x = 529,619.10 × 227,108.20
  4. Step 4: Simplify right side
    353,079.40x = 120,280,840,486.62
  5. Step 5: Solve for x
    x = 120,280,840,486.62/353,079.40
  6. Step 6: Final answer
    x = 340,662.30

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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.