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Finding the Fourth Proportional to 320,254.88, 441,974.68 and 177,011.88

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Solution

The fourth proportional to 320,254.88, 441,974.68 and 177,011.88 is: 244,289.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,254.88 : 441,974.68 = 177,011.88 : x
  2. Step 2: Convert to fraction form
    320,254.88/441,974.68 = 177,011.88/x
  3. Step 3: Cross multiply
    320,254.88x = 441,974.68 × 177,011.88
  4. Step 4: Simplify right side
    320,254.88x = 78,234,769,019.20
  5. Step 5: Solve for x
    x = 78,234,769,019.20/320,254.88
  6. Step 6: Final answer
    x = 244,289.08

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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.