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Finding the Fourth Proportional to 320,057.70, 441,676.31 and 176,808.39

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Solution

The fourth proportional to 320,057.70, 441,676.31 and 176,808.39 is: 243,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,057.70 : 441,676.31 = 176,808.39 : x
  2. Step 2: Convert to fraction form
    320,057.70/441,676.31 = 176,808.39/x
  3. Step 3: Cross multiply
    320,057.70x = 441,676.31 × 176,808.39
  4. Step 4: Simplify right side
    320,057.70x = 78,092,076,388.20
  5. Step 5: Solve for x
    x = 78,092,076,388.20/320,057.70
  6. Step 6: Final answer
    x = 243,993.74

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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.