Home / 540,905.20-811,357.80-166,879.60

Finding the Fourth Proportional to 540,905.20, 811,357.80 and 166,879.60

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Solution

The fourth proportional to 540,905.20, 811,357.80 and 166,879.60 is: 250,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,905.20 : 811,357.80 = 166,879.60 : x
  2. Step 2: Convert to fraction form
    540,905.20/811,357.80 = 166,879.60/x
  3. Step 3: Cross multiply
    540,905.20x = 811,357.80 × 166,879.60
  4. Step 4: Simplify right side
    540,905.20x = 135,399,065,120.88
  5. Step 5: Solve for x
    x = 135,399,065,120.88/540,905.20
  6. Step 6: Final answer
    x = 250,319.40

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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.