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Finding the Fourth Proportional to 366,311.70, 548,811.45 and 313,823.70

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Solution

The fourth proportional to 366,311.70, 548,811.45 and 313,823.70 is: 470,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,311.70 : 548,811.45 = 313,823.70 : x
  2. Step 2: Convert to fraction form
    366,311.70/548,811.45 = 313,823.70/x
  3. Step 3: Cross multiply
    366,311.70x = 548,811.45 × 313,823.70
  4. Step 4: Simplify right side
    366,311.70x = 172,230,039,841.37
  5. Step 5: Solve for x
    x = 172,230,039,841.37/366,311.70
  6. Step 6: Final answer
    x = 470,173.46

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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.