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Finding the Fourth Proportional to 283,272.15, 397,280.85 and 283,272.15

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Solution

The fourth proportional to 283,272.15, 397,280.85 and 283,272.15 is: 397,280.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,272.15 : 397,280.85 = 283,272.15 : x
  2. Step 2: Convert to fraction form
    283,272.15/397,280.85 = 283,272.15/x
  3. Step 3: Cross multiply
    283,272.15x = 397,280.85 × 283,272.15
  4. Step 4: Simplify right side
    283,272.15x = 112,538,600,533.33
  5. Step 5: Solve for x
    x = 112,538,600,533.33/283,272.15
  6. Step 6: Final answer
    x = 397,280.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.