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Finding the Fourth Proportional to 396,453.72, 592,501.11 and 290,060.76

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Solution

The fourth proportional to 396,453.72, 592,501.11 and 290,060.76 is: 433,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,453.72 : 592,501.11 = 290,060.76 : x
  2. Step 2: Convert to fraction form
    396,453.72/592,501.11 = 290,060.76/x
  3. Step 3: Cross multiply
    396,453.72x = 592,501.11 × 290,060.76
  4. Step 4: Simplify right side
    396,453.72x = 171,861,322,267.44
  5. Step 5: Solve for x
    x = 171,861,322,267.44/396,453.72
  6. Step 6: Final answer
    x = 433,496.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.