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Finding the Fourth Proportional to 446,571.20, 669,079.20 and 384,363.20

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Solution

The fourth proportional to 446,571.20, 669,079.20 and 384,363.20 is: 575,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,571.20 : 669,079.20 = 384,363.20 : x
  2. Step 2: Convert to fraction form
    446,571.20/669,079.20 = 384,363.20/x
  3. Step 3: Cross multiply
    446,571.20x = 669,079.20 × 384,363.20
  4. Step 4: Simplify right side
    446,571.20x = 257,169,422,365.44
  5. Step 5: Solve for x
    x = 257,169,422,365.44/446,571.20
  6. Step 6: Final answer
    x = 575,875.52

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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.