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Finding the Fourth Proportional to 470,016.20, 705,024.30 and 270,950.60

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Solution

The fourth proportional to 470,016.20, 705,024.30 and 270,950.60 is: 406,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,016.20 : 705,024.30 = 270,950.60 : x
  2. Step 2: Convert to fraction form
    470,016.20/705,024.30 = 270,950.60/x
  3. Step 3: Cross multiply
    470,016.20x = 705,024.30 × 270,950.60
  4. Step 4: Simplify right side
    470,016.20x = 191,026,757,099.58
  5. Step 5: Solve for x
    x = 191,026,757,099.58/470,016.20
  6. Step 6: Final answer
    x = 406,425.90

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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.