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Finding the Fourth Proportional to 451,101.71, 622,423.47 and 267,398.20

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Solution

The fourth proportional to 451,101.71, 622,423.47 and 267,398.20 is: 368,952.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,101.71 : 622,423.47 = 267,398.20 : x
  2. Step 2: Convert to fraction form
    451,101.71/622,423.47 = 267,398.20/x
  3. Step 3: Cross multiply
    451,101.71x = 622,423.47 × 267,398.20
  4. Step 4: Simplify right side
    451,101.71x = 166,434,915,515.75
  5. Step 5: Solve for x
    x = 166,434,915,515.75/451,101.71
  6. Step 6: Final answer
    x = 368,952.08

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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.