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Finding the Fourth Proportional to 290,444.88, 400,858.44 and 177,333.84

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Solution

The fourth proportional to 290,444.88, 400,858.44 and 177,333.84 is: 244,747.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,444.88 : 400,858.44 = 177,333.84 : x
  2. Step 2: Convert to fraction form
    290,444.88/400,858.44 = 177,333.84/x
  3. Step 3: Cross multiply
    290,444.88x = 400,858.44 × 177,333.84
  4. Step 4: Simplify right side
    290,444.88x = 71,085,766,461.61
  5. Step 5: Solve for x
    x = 71,085,766,461.61/290,444.88
  6. Step 6: Final answer
    x = 244,747.87

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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.