Home / 619,386.20-929,079.30-198,704.60

Finding the Fourth Proportional to 619,386.20, 929,079.30 and 198,704.60

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Solution

The fourth proportional to 619,386.20, 929,079.30 and 198,704.60 is: 298,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,386.20 : 929,079.30 = 198,704.60 : x
  2. Step 2: Convert to fraction form
    619,386.20/929,079.30 = 198,704.60/x
  3. Step 3: Cross multiply
    619,386.20x = 929,079.30 × 198,704.60
  4. Step 4: Simplify right side
    619,386.20x = 184,612,330,674.78
  5. Step 5: Solve for x
    x = 184,612,330,674.78/619,386.20
  6. Step 6: Final answer
    x = 298,056.90

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Similar ratio
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1.5x scale

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.