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Finding the Fourth Proportional to 366,919.80, 550,379.70 and 334,260.60

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Solution

The fourth proportional to 366,919.80, 550,379.70 and 334,260.60 is: 501,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,919.80 : 550,379.70 = 334,260.60 : x
  2. Step 2: Convert to fraction form
    366,919.80/550,379.70 = 334,260.60/x
  3. Step 3: Cross multiply
    366,919.80x = 550,379.70 × 334,260.60
  4. Step 4: Simplify right side
    366,919.80x = 183,970,248,749.82
  5. Step 5: Solve for x
    x = 183,970,248,749.82/366,919.80
  6. Step 6: Final answer
    x = 501,390.90

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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.