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Finding the Fourth Proportional to 433,987.65, 650,981.48 and 365,558.85

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Solution

The fourth proportional to 433,987.65, 650,981.48 and 365,558.85 is: 548,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,987.65 : 650,981.48 = 365,558.85 : x
  2. Step 2: Convert to fraction form
    433,987.65/650,981.48 = 365,558.85/x
  3. Step 3: Cross multiply
    433,987.65x = 650,981.48 × 365,558.85
  4. Step 4: Simplify right side
    433,987.65x = 237,972,039,372.30
  5. Step 5: Solve for x
    x = 237,972,039,372.30/433,987.65
  6. Step 6: Final answer
    x = 548,338.28

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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.