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Finding the Fourth Proportional to 416,426.38, 574,668.60 and 225,439.78

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Solution

The fourth proportional to 416,426.38, 574,668.60 and 225,439.78 is: 311,107.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,426.38 : 574,668.60 = 225,439.78 : x
  2. Step 2: Convert to fraction form
    416,426.38/574,668.60 = 225,439.78/x
  3. Step 3: Cross multiply
    416,426.38x = 574,668.60 × 225,439.78
  4. Step 4: Simplify right side
    416,426.38x = 129,553,162,756.91
  5. Step 5: Solve for x
    x = 129,553,162,756.91/416,426.38
  6. Step 6: Final answer
    x = 311,107.00

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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.