Home / 509,811.57-764,736.80-190,043.01

Finding the Fourth Proportional to 509,811.57, 764,736.80 and 190,043.01

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Solution

The fourth proportional to 509,811.57, 764,736.80 and 190,043.01 is: 285,071.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,811.57 : 764,736.80 = 190,043.01 : x
  2. Step 2: Convert to fraction form
    509,811.57/764,736.80 = 190,043.01/x
  3. Step 3: Cross multiply
    509,811.57x = 764,736.80 × 190,043.01
  4. Step 4: Simplify right side
    509,811.57x = 145,332,882,379.55
  5. Step 5: Solve for x
    x = 145,332,882,379.55/509,811.57
  6. Step 6: Final answer
    x = 285,071.76

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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.