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Finding the Fourth Proportional to 396,047.44, 546,574.38 and 226,277.92

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Solution

The fourth proportional to 396,047.44, 546,574.38 and 226,277.92 is: 312,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,047.44 : 546,574.38 = 226,277.92 : x
  2. Step 2: Convert to fraction form
    396,047.44/546,574.38 = 226,277.92/x
  3. Step 3: Cross multiply
    396,047.44x = 546,574.38 × 226,277.92
  4. Step 4: Simplify right side
    396,047.44x = 123,677,713,831.69
  5. Step 5: Solve for x
    x = 123,677,713,831.69/396,047.44
  6. Step 6: Final answer
    x = 312,280.05

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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.