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Finding the Fourth Proportional to 669,471, 923,868.84 and 367,665

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Solution

The fourth proportional to 669,471, 923,868.84 and 367,665 is: 507,377.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,471 : 923,868.84 = 367,665 : x
  2. Step 2: Convert to fraction form
    669,471/923,868.84 = 367,665/x
  3. Step 3: Cross multiply
    669,471x = 923,868.84 × 367,665
  4. Step 4: Simplify right side
    669,471x = 339,674,237,058.60
  5. Step 5: Solve for x
    x = 339,674,237,058.60/669,471
  6. Step 6: Final answer
    x = 507,377.07

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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.