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Finding the Fourth Proportional to 385,183.36, 531,385.86 and 232,134.58

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Solution

The fourth proportional to 385,183.36, 531,385.86 and 232,134.58 is: 320,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,183.36 : 531,385.86 = 232,134.58 : x
  2. Step 2: Convert to fraction form
    385,183.36/531,385.86 = 232,134.58/x
  3. Step 3: Cross multiply
    385,183.36x = 531,385.86 × 232,134.58
  4. Step 4: Simplify right side
    385,183.36x = 123,353,033,429.04
  5. Step 5: Solve for x
    x = 123,353,033,429.04/385,183.36
  6. Step 6: Final answer
    x = 320,244.97

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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.