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Finding the Fourth Proportional to 550,426.20, 825,639.30 and 360,977.33

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Solution

The fourth proportional to 550,426.20, 825,639.30 and 360,977.33 is: 541,465.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,426.20 : 825,639.30 = 360,977.33 : x
  2. Step 2: Convert to fraction form
    550,426.20/825,639.30 = 360,977.33/x
  3. Step 3: Cross multiply
    550,426.20x = 825,639.30 × 360,977.33
  4. Step 4: Simplify right side
    550,426.20x = 298,037,065,928.87
  5. Step 5: Solve for x
    x = 298,037,065,928.87/550,426.20
  6. Step 6: Final answer
    x = 541,465.99

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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.