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Finding the Fourth Proportional to 396,807.69, 547,530.63 and 243,796.67

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Solution

The fourth proportional to 396,807.69, 547,530.63 and 243,796.67 is: 336,400.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,807.69 : 547,530.63 = 243,796.67 : x
  2. Step 2: Convert to fraction form
    396,807.69/547,530.63 = 243,796.67/x
  3. Step 3: Cross multiply
    396,807.69x = 547,530.63 × 243,796.67
  4. Step 4: Simplify right side
    396,807.69x = 133,486,144,317.00
  5. Step 5: Solve for x
    x = 133,486,144,317.00/396,807.69
  6. Step 6: Final answer
    x = 336,400.09

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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.