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Finding the Fourth Proportional to 669,469.50, 923,875.20 and 367,663.50

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Solution

The fourth proportional to 669,469.50, 923,875.20 and 367,663.50 is: 507,379.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,469.50 : 923,875.20 = 367,663.50 : x
  2. Step 2: Convert to fraction form
    669,469.50/923,875.20 = 367,663.50/x
  3. Step 3: Cross multiply
    669,469.50x = 923,875.20 × 367,663.50
  4. Step 4: Simplify right side
    669,469.50x = 339,675,189,595.20
  5. Step 5: Solve for x
    x = 339,675,189,595.20/669,469.50
  6. Step 6: Final answer
    x = 507,379.63

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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.