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Finding the Fourth Proportional to 422,670.69, 583,267.23 and 252,998.37

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Solution

The fourth proportional to 422,670.69, 583,267.23 and 252,998.37 is: 349,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,670.69 : 583,267.23 = 252,998.37 : x
  2. Step 2: Convert to fraction form
    422,670.69/583,267.23 = 252,998.37/x
  3. Step 3: Cross multiply
    422,670.69x = 583,267.23 × 252,998.37
  4. Step 4: Simplify right side
    422,670.69x = 147,565,658,464.42
  5. Step 5: Solve for x
    x = 147,565,658,464.42/422,670.69
  6. Step 6: Final answer
    x = 349,126.78

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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.