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Finding the Fourth Proportional to 422,609.76, 583,115.28 and 250,451.84

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Solution

The fourth proportional to 422,609.76, 583,115.28 and 250,451.84 is: 345,572.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,609.76 : 583,115.28 = 250,451.84 : x
  2. Step 2: Convert to fraction form
    422,609.76/583,115.28 = 250,451.84/x
  3. Step 3: Cross multiply
    422,609.76x = 583,115.28 × 250,451.84
  4. Step 4: Simplify right side
    422,609.76x = 146,042,294,808.12
  5. Step 5: Solve for x
    x = 146,042,294,808.12/422,609.76
  6. Step 6: Final answer
    x = 345,572.46

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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.