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Finding the Fourth Proportional to 426,891.70, 589,133.22 and 245,631.15

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Solution

The fourth proportional to 426,891.70, 589,133.22 and 245,631.15 is: 338,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,891.70 : 589,133.22 = 245,631.15 : x
  2. Step 2: Convert to fraction form
    426,891.70/589,133.22 = 245,631.15/x
  3. Step 3: Cross multiply
    426,891.70x = 589,133.22 × 245,631.15
  4. Step 4: Simplify right side
    426,891.70x = 144,709,469,410.69
  5. Step 5: Solve for x
    x = 144,709,469,410.69/426,891.70
  6. Step 6: Final answer
    x = 338,984.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.