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Finding the Fourth Proportional to 397,268.80, 595,903.20 and 284,711.20

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Solution

The fourth proportional to 397,268.80, 595,903.20 and 284,711.20 is: 427,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,268.80 : 595,903.20 = 284,711.20 : x
  2. Step 2: Convert to fraction form
    397,268.80/595,903.20 = 284,711.20/x
  3. Step 3: Cross multiply
    397,268.80x = 595,903.20 × 284,711.20
  4. Step 4: Simplify right side
    397,268.80x = 169,660,315,155.84
  5. Step 5: Solve for x
    x = 169,660,315,155.84/397,268.80
  6. Step 6: Final answer
    x = 427,066.80

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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.