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Finding the Fourth Proportional to 666,028.67, 919,105.85 and 364,222.67

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Solution

The fourth proportional to 666,028.67, 919,105.85 and 364,222.67 is: 502,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,028.67 : 919,105.85 = 364,222.67 : x
  2. Step 2: Convert to fraction form
    666,028.67/919,105.85 = 364,222.67/x
  3. Step 3: Cross multiply
    666,028.67x = 919,105.85 × 364,222.67
  4. Step 4: Simplify right side
    666,028.67x = 334,759,183,014.65
  5. Step 5: Solve for x
    x = 334,759,183,014.65/666,028.67
  6. Step 6: Final answer
    x = 502,619.78

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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.