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Finding the Fourth Proportional to 385,939.69, 532,596.78 and 235,036.69

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Solution

The fourth proportional to 385,939.69, 532,596.78 and 235,036.69 is: 324,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,939.69 : 532,596.78 = 235,036.69 : x
  2. Step 2: Convert to fraction form
    385,939.69/532,596.78 = 235,036.69/x
  3. Step 3: Cross multiply
    385,939.69x = 532,596.78 × 235,036.69
  4. Step 4: Simplify right side
    385,939.69x = 125,179,782,944.37
  5. Step 5: Solve for x
    x = 125,179,782,944.37/385,939.69
  6. Step 6: Final answer
    x = 324,350.64

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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.