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Finding the Fourth Proportional to 499,040.40, 749,030.40 and 262,552.80

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Solution

The fourth proportional to 499,040.40, 749,030.40 and 262,552.80 is: 394,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,040.40 : 749,030.40 = 262,552.80 : x
  2. Step 2: Convert to fraction form
    499,040.40/749,030.40 = 262,552.80/x
  3. Step 3: Cross multiply
    499,040.40x = 749,030.40 × 262,552.80
  4. Step 4: Simplify right side
    499,040.40x = 196,660,028,805.12
  5. Step 5: Solve for x
    x = 196,660,028,805.12/499,040.40
  6. Step 6: Final answer
    x = 394,076.37

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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.