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Finding the Fourth Proportional to 667,535.00, 921,201.12 and 361,611.38

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Solution

The fourth proportional to 667,535.00, 921,201.12 and 361,611.38 is: 499,025.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,535.00 : 921,201.12 = 361,611.38 : x
  2. Step 2: Convert to fraction form
    667,535.00/921,201.12 = 361,611.38/x
  3. Step 3: Cross multiply
    667,535.00x = 921,201.12 × 361,611.38
  4. Step 4: Simplify right side
    667,535.00x = 333,116,808,563.08
  5. Step 5: Solve for x
    x = 333,116,808,563.08/667,535.00
  6. Step 6: Final answer
    x = 499,025.23

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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.