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Finding the Fourth Proportional to 408,357.10, 563,542.56 and 227,076.67

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Solution

The fourth proportional to 408,357.10, 563,542.56 and 227,076.67 is: 313,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,357.10 : 563,542.56 = 227,076.67 : x
  2. Step 2: Convert to fraction form
    408,357.10/563,542.56 = 227,076.67/x
  3. Step 3: Cross multiply
    408,357.10x = 563,542.56 × 227,076.67
  4. Step 4: Simplify right side
    408,357.10x = 127,967,367,928.08
  5. Step 5: Solve for x
    x = 127,967,367,928.08/408,357.10
  6. Step 6: Final answer
    x = 313,371.23

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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.