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Finding the Fourth Proportional to 395,885.28, 546,327.72 and 226,119.72

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Solution

The fourth proportional to 395,885.28, 546,327.72 and 226,119.72 is: 312,048.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,885.28 : 546,327.72 = 226,119.72 : x
  2. Step 2: Convert to fraction form
    395,885.28/546,327.72 = 226,119.72/x
  3. Step 3: Cross multiply
    395,885.28x = 546,327.72 × 226,119.72
  4. Step 4: Simplify right side
    395,885.28x = 123,535,471,074.64
  5. Step 5: Solve for x
    x = 123,535,471,074.64/395,885.28
  6. Step 6: Final answer
    x = 312,048.66

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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.