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Finding the Fourth Proportional to 492,825.20, 739,237.80 and 443,058.80

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Solution

The fourth proportional to 492,825.20, 739,237.80 and 443,058.80 is: 664,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,825.20 : 739,237.80 = 443,058.80 : x
  2. Step 2: Convert to fraction form
    492,825.20/739,237.80 = 443,058.80/x
  3. Step 3: Cross multiply
    492,825.20x = 739,237.80 × 443,058.80
  4. Step 4: Simplify right side
    492,825.20x = 327,525,812,582.64
  5. Step 5: Solve for x
    x = 327,525,812,582.64/492,825.20
  6. Step 6: Final answer
    x = 664,588.20

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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.