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Finding the Fourth Proportional to 669,546.54, 923,980.77 and 367,740.54

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Solution

The fourth proportional to 669,546.54, 923,980.77 and 367,740.54 is: 507,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,546.54 : 923,980.77 = 367,740.54 : x
  2. Step 2: Convert to fraction form
    669,546.54/923,980.77 = 367,740.54/x
  3. Step 3: Cross multiply
    669,546.54x = 923,980.77 × 367,740.54
  4. Step 4: Simplify right side
    669,546.54x = 339,785,187,309.42
  5. Step 5: Solve for x
    x = 339,785,187,309.42/669,546.54
  6. Step 6: Final answer
    x = 507,485.54

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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.