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Finding the Fourth Proportional to 669,475.17, 923,891.81 and 367,675.65

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Solution

The fourth proportional to 669,475.17, 923,891.81 and 367,675.65 is: 507,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,475.17 : 923,891.81 = 367,675.65 : x
  2. Step 2: Convert to fraction form
    669,475.17/923,891.81 = 367,675.65/x
  3. Step 3: Cross multiply
    669,475.17x = 923,891.81 × 367,675.65
  4. Step 4: Simplify right side
    669,475.17x = 339,692,519,933.05
  5. Step 5: Solve for x
    x = 339,692,519,933.05/669,475.17
  6. Step 6: Final answer
    x = 507,401.22

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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.