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Finding the Fourth Proportional to 403,786.30, 605,533.65 and 204,040.30

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Solution

The fourth proportional to 403,786.30, 605,533.65 and 204,040.30 is: 305,986.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,786.30 : 605,533.65 = 204,040.30 : x
  2. Step 2: Convert to fraction form
    403,786.30/605,533.65 = 204,040.30/x
  3. Step 3: Cross multiply
    403,786.30x = 605,533.65 × 204,040.30
  4. Step 4: Simplify right side
    403,786.30x = 123,553,267,606.10
  5. Step 5: Solve for x
    x = 123,553,267,606.10/403,786.30
  6. Step 6: Final answer
    x = 305,986.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.