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Finding the Fourth Proportional to 320,214.60, 441,889.83 and 176,980.68

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Solution

The fourth proportional to 320,214.60, 441,889.83 and 176,980.68 is: 244,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,214.60 : 441,889.83 = 176,980.68 : x
  2. Step 2: Convert to fraction form
    320,214.60/441,889.83 = 176,980.68/x
  3. Step 3: Cross multiply
    320,214.60x = 441,889.83 × 176,980.68
  4. Step 4: Simplify right side
    320,214.60x = 78,205,962,598.48
  5. Step 5: Solve for x
    x = 78,205,962,598.48/320,214.60
  6. Step 6: Final answer
    x = 244,229.85

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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.