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Finding the Fourth Proportional to 533,418.58, 800,752.98 and 421,174.45

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Solution

The fourth proportional to 533,418.58, 800,752.98 and 421,174.45 is: 632,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,418.58 : 800,752.98 = 421,174.45 : x
  2. Step 2: Convert to fraction form
    533,418.58/800,752.98 = 421,174.45/x
  3. Step 3: Cross multiply
    533,418.58x = 800,752.98 × 421,174.45
  4. Step 4: Simplify right side
    533,418.58x = 337,256,695,937.36
  5. Step 5: Solve for x
    x = 337,256,695,937.36/533,418.58
  6. Step 6: Final answer
    x = 632,255.25

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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.