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Finding the Fourth Proportional to 522,801.22, 784,139.49 and 143,760.46

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Solution

The fourth proportional to 522,801.22, 784,139.49 and 143,760.46 is: 215,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,801.22 : 784,139.49 = 143,760.46 : x
  2. Step 2: Convert to fraction form
    522,801.22/784,139.49 = 143,760.46/x
  3. Step 3: Cross multiply
    522,801.22x = 784,139.49 × 143,760.46
  4. Step 4: Simplify right side
    522,801.22x = 112,728,253,786.57
  5. Step 5: Solve for x
    x = 112,728,253,786.57/522,801.22
  6. Step 6: Final answer
    x = 215,623.55

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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.