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Finding the Fourth Proportional to 667,107.36, 920,599.02 and 365,301.36

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Solution

The fourth proportional to 667,107.36, 920,599.02 and 365,301.36 is: 504,110.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,107.36 : 920,599.02 = 365,301.36 : x
  2. Step 2: Convert to fraction form
    667,107.36/920,599.02 = 365,301.36/x
  3. Step 3: Cross multiply
    667,107.36x = 920,599.02 × 365,301.36
  4. Step 4: Simplify right side
    667,107.36x = 336,296,074,020.67
  5. Step 5: Solve for x
    x = 336,296,074,020.67/667,107.36
  6. Step 6: Final answer
    x = 504,110.87

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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.