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Finding the Fourth Proportional to 669,231, 923,553.36 and 367,425

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Solution

The fourth proportional to 669,231, 923,553.36 and 367,425 is: 507,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,231 : 923,553.36 = 367,425 : x
  2. Step 2: Convert to fraction form
    669,231/923,553.36 = 367,425/x
  3. Step 3: Cross multiply
    669,231x = 923,553.36 × 367,425
  4. Step 4: Simplify right side
    669,231x = 339,336,593,298
  5. Step 5: Solve for x
    x = 339,336,593,298/669,231
  6. Step 6: Final answer
    x = 507,054.50

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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.