Home / 619,814.40-929,851.20-199,132.80

Finding the Fourth Proportional to 619,814.40, 929,851.20 and 199,132.80

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Solution

The fourth proportional to 619,814.40, 929,851.20 and 199,132.80 is: 298,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,814.40 : 929,851.20 = 199,132.80 : x
  2. Step 2: Convert to fraction form
    619,814.40/929,851.20 = 199,132.80/x
  3. Step 3: Cross multiply
    619,814.40x = 929,851.20 × 199,132.80
  4. Step 4: Simplify right side
    619,814.40x = 185,163,873,039.36
  5. Step 5: Solve for x
    x = 185,163,873,039.36/619,814.40
  6. Step 6: Final answer
    x = 298,740.84

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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.