Home / 665,191.80-997,917.30-265,764.60

Finding the Fourth Proportional to 665,191.80, 997,917.30 and 265,764.60

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Solution

The fourth proportional to 665,191.80, 997,917.30 and 265,764.60 is: 398,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,191.80 : 997,917.30 = 265,764.60 : x
  2. Step 2: Convert to fraction form
    665,191.80/997,917.30 = 265,764.60/x
  3. Step 3: Cross multiply
    665,191.80x = 997,917.30 × 265,764.60
  4. Step 4: Simplify right side
    665,191.80x = 265,211,092,067.58
  5. Step 5: Solve for x
    x = 265,211,092,067.58/665,191.80
  6. Step 6: Final answer
    x = 398,698.68

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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.