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Finding the Fourth Proportional to 432,267.33, 648,400.99 and 221,771.01

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Solution

The fourth proportional to 432,267.33, 648,400.99 and 221,771.01 is: 332,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,267.33 : 648,400.99 = 221,771.01 : x
  2. Step 2: Convert to fraction form
    432,267.33/648,400.99 = 221,771.01/x
  3. Step 3: Cross multiply
    432,267.33x = 648,400.99 × 221,771.01
  4. Step 4: Simplify right side
    432,267.33x = 143,796,542,437.30
  5. Step 5: Solve for x
    x = 143,796,542,437.30/432,267.33
  6. Step 6: Final answer
    x = 332,656.51

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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.