Home / 513,220.20-769,830.30-158,202.60

Finding the Fourth Proportional to 513,220.20, 769,830.30 and 158,202.60

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Solution

The fourth proportional to 513,220.20, 769,830.30 and 158,202.60 is: 237,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,220.20 : 769,830.30 = 158,202.60 : x
  2. Step 2: Convert to fraction form
    513,220.20/769,830.30 = 158,202.60/x
  3. Step 3: Cross multiply
    513,220.20x = 769,830.30 × 158,202.60
  4. Step 4: Simplify right side
    513,220.20x = 121,789,155,018.78
  5. Step 5: Solve for x
    x = 121,789,155,018.78/513,220.20
  6. Step 6: Final answer
    x = 237,303.90

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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.