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Finding the Fourth Proportional to 451,995.38, 673,999.65 and 447,938.50

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Solution

The fourth proportional to 451,995.38, 673,999.65 and 447,938.50 is: 667,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,995.38 : 673,999.65 = 447,938.50 : x
  2. Step 2: Convert to fraction form
    451,995.38/673,999.65 = 447,938.50/x
  3. Step 3: Cross multiply
    451,995.38x = 673,999.65 × 447,938.50
  4. Step 4: Simplify right side
    451,995.38x = 301,910,388,856.76
  5. Step 5: Solve for x
    x = 301,910,388,856.76/451,995.38
  6. Step 6: Final answer
    x = 667,950.16

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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.