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Finding the Fourth Proportional to 396,663.66, 547,340.78 and 233,327.58

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Solution

The fourth proportional to 396,663.66, 547,340.78 and 233,327.58 is: 321,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,663.66 : 547,340.78 = 233,327.58 : x
  2. Step 2: Convert to fraction form
    396,663.66/547,340.78 = 233,327.58/x
  3. Step 3: Cross multiply
    396,663.66x = 547,340.78 × 233,327.58
  4. Step 4: Simplify right side
    396,663.66x = 127,709,699,632.71
  5. Step 5: Solve for x
    x = 127,709,699,632.71/396,663.66
  6. Step 6: Final answer
    x = 321,959.67

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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.