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Finding the Fourth Proportional to 290,391.75, 400,566.87 and 182,774.95

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Solution

The fourth proportional to 290,391.75, 400,566.87 and 182,774.95 is: 252,120.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,391.75 : 400,566.87 = 182,774.95 : x
  2. Step 2: Convert to fraction form
    290,391.75/400,566.87 = 182,774.95/x
  3. Step 3: Cross multiply
    290,391.75x = 400,566.87 × 182,774.95
  4. Step 4: Simplify right side
    290,391.75x = 73,213,588,634.49
  5. Step 5: Solve for x
    x = 73,213,588,634.49/290,391.75
  6. Step 6: Final answer
    x = 252,120.07

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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.