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Finding the Fourth Proportional to 470,957.28, 649,901.26 and 267,021.92

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Solution

The fourth proportional to 470,957.28, 649,901.26 and 267,021.92 is: 368,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,957.28 : 649,901.26 = 267,021.92 : x
  2. Step 2: Convert to fraction form
    470,957.28/649,901.26 = 267,021.92/x
  3. Step 3: Cross multiply
    470,957.28x = 649,901.26 × 267,021.92
  4. Step 4: Simplify right side
    470,957.28x = 173,537,882,255.62
  5. Step 5: Solve for x
    x = 173,537,882,255.62/470,957.28
  6. Step 6: Final answer
    x = 368,479.03

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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.